LIMITED TIME OFFER BLACK FRIDAYsale

LIMITED TIME OFFER SAVE UP TO 95% OFF ED MEDS & PAY $2 PER TABLET.

Rex MD Logo
Explore Treatments

Start your online visit

Erectile Dysfunction

Weight Loss

Testosterone

  •  

Hair Loss

Premature Ejaculation

Insomnia & Sleep

Herpes Breakouts

Top Products

Resources

Have Questions?

Talk to live agent (Mon – Fri: 9:30am – 6:30pm EST).
(866) 294-3772

More questions? Visit our FAQ page

Try Viagra® (sildenafil) Try Cialis® (tadalafil)

Voted #1 ED Treatment

Best Online ED Service

Winner 2024

Save Up To 95% Off

Generic Viagra® & Cialis®

As low as $2/dose

U.S Licensed Physicians

FDA-Approved Medications

Made in America

Special: Free Rush Delivery

Shipped to your door

Promo Code: FREESHIP

Rated 4.6 “Excellent”

Trustpilot 3,485 reviews

Verified Reviews

Genuine ED Medications

Free Online Consultations

Branded & Generic Available

58+ Million Doses

Prescribed 100% Online

As of 6 minutes ago

Always Be Ready For Sex

Lowest Prices Guaranteed

Promotion available today

Last Up To 36 Hours

Be ready within 30 min

Promo Code: FREESHIP

The Authority in Men’s Telehealth

ED Meds Prescribed
100% Online & Delivered Free!

ED Medications
Prescribed Online
& Delivered Free!

Genuine FDA-Approved medications.
No doctor visits. No hidden fees.

Try Viagra® (sildanafil) Try Cialis® (tadalafil)

Save up to 95% off generic Viagra®, Cialis®
and Cialis® Daily and get it delivered FREE

  • Over 50 Million ED
    Tablets
    Prescribed
    & Delivered

CHOSEN BY OVER 475,000 MEN
Important Safety Information

Always Be "Date Night" Ready

Turn up the heat with prescription
ED medications and take your
confidence to a whole new level.

GREAT SEX AWAITS

Voted #1 Best All-In-One ED Service of 2024‡

Get Your ED Medication
Delivered in 3 Easy Steps

Get Your ED
Medication Delivered
in 3 Easy Steps

  • Step 1

    Fill out our free consultation and get
    your prescription treatment from a
    US-licensed physician.

  • Step 2

    Your treatment will always be
    sent in discreet packaging, with
    free 2-day delivery.

  • Step 3

    We’re here for ongoing care.
    Whenever you want to discuss
    treatment, just send a message.

Voted #1 “Best ED Service” of 2024

Get safe, effective ED
treatments from home.

Get safe, effective
ED treatments from
home.

REX MD is your online source for real ED medications, delivered direct
to your door for FREE. It’s Fast, Easy and Affordable.

“Don’t put your love life on hold. At Rex MD, our patients come first. Our
online consultations are free and prescriptions are written by a physician
such as myself or another board-certified U.S. clinician can recommend
and prescribe the best options for you.”

Dr. Anthony Puopolo

Rex MD Chief Medical Officer

Try Viagra® (sildanafil) Try Cialis® (tadalafil)

Save up to 95% off generic Viagra®, Cialis®
and Cialis® Daily and get it delivered FREE

Important Safety Information
Important Safety Information

A prescription will be written if deemed
appropriate after an online
consultation
with a licensed medical provider.

Real Members.
Verified Reviews.

  • Keir D.,
    Rex MD® Patient

  • Jamal S.,
    Rex MD® Patient

  • Alex A.,
    Rex MD® Patient

  • Steve W.,
    Rex MD® Patient

  • Brian M.,
    Rex MD® Patient

  • Sylvester,
    Rex MD® Patient

  • Michael G.,
    Rex MD® Patient

  • Noel R.,
    Rex MD® Patient

Try Viagra® (sildanafil) Try Cialis® (tadalafil)

Save up to 95% off generic Viagra®, Cialis®
and Cialis® Daily and get it delivered FREE

Don’t put your love life on hold.

At Rex MD we believe
that every man should
feel confident in bed.

At Rex MD we believe that
every man should feel
confident in bed.

SELECT YOUR MEDICATION
Same Treatments.

Rex MD Satisfaction Guarantee

If you’re not crazy about your results, just
contact us and we’ll take care of you.

100% Online.

Free Online Consultation

Rex MD® offers professional medical guidance
and patient care without in-person visits.

Faster Delivery.

Free Rush “No Contact” Delivery

It couldn’t be any easier. Once prescribed, your
treatment is rushed directly to your door.

Try Viagra® (sildanafil) Try Cialis® (tadalafil)

Save up to 95% off generic Viagra®, Cialis®
and Cialis® Daily and get it delivered FREE

Genuine Treatments. Free Consultation. Faster Delivery.

Genuine Treatments. Free Online
Consultation. Faster Delivery.

Unlock the Lowest
Price Per Pill

Why choose Rex MD?

  • FDA-approved medications
  • Best price per pill, guaranteed
  • Fast, free, discreet delivery

Save up to 95% off generic Viagra®, Cialis® and Cialis® Daily and get it delivered FREE

2,600+ 5-Star Reviews

Step-1: Select Your
ED Treatment & Dose

Starts working in 30 min & lasts up to 6 hrs Same active ingredient as Viagra®
Starts working in 30 min & lasts up to 36 hrs Same active ingredient as Cialis®
Starts working in 30 min & lasts up to 6 hrs Same active ingredient as Generic Viagra
Continue to Checkout
Best Price Guaranteed!

  • “This was my first time using telemedicine and I have to say it was simple and discreet. I would recommend this process to anyone.”

    Joe B.

    Verified Patient

  • “Everything was exactly as it was explained. It couldn’t be easier.”

    Gary B.

    Verified Patient

  • “Everything was perfect. My prescription showed up on time the doctor was easy to talk to - I couldn’t be happier with the product.”

    Scott S.

    Verified Patient

  • "Love your service and product. Changed everything for the better. THANK YOU !!!"

    John B.

    Verified Patient

  • "Great dealing with you guys!!!"

    Chris G.

    Verified Patient

  • “You are doing an excellent job. Keep up the good work. Thanks to you I have a very improved relationship with my wife.”

    Jeff W.

    Verified Patient

  • "The experience was smooth and fantastic."

    Neal B.

    Verified Patient

  • "The service was great and the price was affordable."

    Billy I.

    Verified Patient

  • “You provide an excellent product, great customer service and fast delivery. Thank you and keep up the good work.”

    James M.

    Verified Patient

  • "Everything was done in a timely manner. Totally Awesome."

    Dale H.

    Verified Patient

  • "Was actually easy for a non computer savvy old man."

    Dave P.

    Verified Patient

  • "I've attempted to use two other sites and they made it exceptionally difficult and drawn out. Your system was quick and efficient."

    Michael M.

    Verified Patient

  • “I was skeptical at first. After a painless questionnaire everything worked out great."

    Dan D.

    Verified Patient

  • "I can’t think of anything else that could be better, this system is perfect."

    Ben T.

    Verified Patient

  • "I think a lot of customers will be very satisfied like I am."

    Chris W.

    Verified Patient

  • "Keep making your customer service awesome for all customers."

    Alan S.

    Verified Patient

Same medication.
No hidden fees.
Faster delivery.

Same medications.

No hidden fees. No doctor visits.

If prescribed, your prescription will be rushed to your door
with free 2-day delivery, directly from the pharmacy.

If prescribed, your prescription
will be rushed to your door with free 2-day
delivery, directly from the pharmacy.

We guarantee the lowest price per tablet on generic Viagra®,
Cialis®, and Cialis® Daily. Save up to 95% on generic ED
medications compared to any telehealth provider - if you find a
lower price we will beat it.

Try Viagra® (sildanafil) Try Cialis® (tadalafil)

Save up to 95% off generic Viagra®, Cialis®
and Cialis® Daily and get it delivered FREE

We guarantee the lowest price per tablet on generic Viagra®, Cialis®, and Cialis® Daily. Save up to 95% on generic ED medications compared to any telehealth provider - if you find a lower price we will beat it.

Try Viagra® (sildanafil) Try Cialis® (tadalafil)

Save up to 95% off generic Viagra®, Cialis®
and Cialis® Daily and get it delivered FREE

The Best US-Licensed Physicians

Medical Doctors You Can Trust.

Real Medical Doctors
You Can Trust.

  • Laurenmarie Cormier, N.P.

    REX MD Clinical Advisor

    Laurenmarie Cormier is a nurse
    practitioner who supports
    programs that improve patient
    access to quality care.

  • Banita Sehgal, M.D.

    Clinical Advisor

    Dr. Banita Sehgal is an internal
    medicine doctor with over
    20 years of experience practicing
    medicine.

  • Jonathan Guirguis, M.D.

    Clinical Advisor

    Dr. Jonathan Guirguis is a physician
    specializing in internal medicine,
    with a special interest in nutrition
    and preventive care.

  • Anthony Puopolo, M.D.

    Chief Medical Officer

    Dr. Anthony Puopolo is a physician
    specializing in family medicine,
    psychiatry, and integrative
    medicine.

  • David Culpepper, M.D.

    Clinical Advisor

    Dr. David Culpepper is a physician
    with over three decades of
    experience practicing general
    internal medicine.

Get safe, effective
ED
treatments
from home.

2,600+ 5-Star Reviews

  • ED meds from a US-licensed pharmacy
  • 100% online with FREE consultation
  • No awkward doctors’ visits
  • No fake ED medications. Try generic
    Viagra®
    or Cialis® as low as $2/dose

Rex MD is excited to announce the New
TestoRx Prescription Testosterone Therapy

TestoRx will be available in October 2024

Prescription Testosterone

Enter your info to be one of the first in line.

By submitting this form, you agree to receive recurring automated promotional and personalized marketing text messages (e.g. cart reminders) from Rex MD at the cell number used when signing up. Consent is not a condition of any purchase. Reply HELP for help and STOP to cancel. Msg frequency varies. Msg and data rates may apply. View Terms & Privacy.


Thank you! We'll email you as soon as TestoRX is available to the general public.

In the meantime, check out all of the Men's Telehealth Treatments and Save 95% Off with generic Viagra & generic Cialis today.

Important Safety Information
Viagra and Cialis

What Should You Know Before Taking Viagra?

Disclaimer: The information provided on this page is not a substitute for professional medical advice or diagnosis.

Contraindications

Do not take Viagra® or generic Viagra® if you:
  • take medicines called "nitrates" (such as nitroglycerin)
  • use street drugs called "poppers" such as amyl nitrate or amyl nitrite, and butyl nitrate
  • take any medicines called guanylate cyclase stimulators such as riociguat (Adempas)
  • are allergic to sildenafil, as contained in Viagra® and Revatio, or any of the ingredients in Viagra®. See the end of this leaflet for a complete list of ingredients in Viagra®.
What should I tell my healthcare provider before taking Viagra® or generic Viagra®?

To make sure Viagra® is safe for you, tell your healthcare provider if you have any of the following before you take Viagra® or generic Viagra®:

  • Have or have had heart problems such as a heart attack,irregular heartbeat, angina, chest pain, narrowing of the aortic valve, or heart failure
  • Have had heart surgery within the last 6 months
  • Have pulmonary hypertension
  • Have had a stroke
  • Have low blood pressure, or high blood pressure that is not controlled
  • Have a deformed penis shape
  • Have had an erection that lasted for more than 4 hours
  • Have problems with your blood cells such as sickle cell anemia, multiple myeloma, or leukemia
  • Have retinitis pigmentosa, a rare genetic (runs in families) eye disease
  • Have ever had severe vision loss, including an eye problem called NAION
  • Have bleeding problems
  • Have or have had stomach or intestinal ulcers
  • Have liver problems
  • Have kidney problems or are having kidney dialysis
  • Have any other medical conditions

Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements.

Viagra® and generic Viagra® may affect the way other medicines work, and other medicines may affect the way Viagra® and generic Viagra® works, causing side effects.

Drug Interactions

Tell your healthcare provider if you take any of the following because these drugs interact with Viagra® and generic Viagra®:

  • Medicines called "nitrates"
  • Medicines called guanylate cyclase stimulators such as Adempas® (riociguat)
  • Medicines called alpha-blockers such as Hytrin® (terazosin HCl), Flomax® (tamsulosin HCl), Cardura® (doxazosin mesylate), Minipress® (prazosin HCl), Uroxatral® (alfuzosin HCl), Jalyn® (dutasteride and tamsulosin HCl), or Rapaflo® (silodosin). Alpha-blockers are sometimes prescribed for prostate problems or high blood pressure. In some patients, the use of VIAGRA® or generic VIAGRA® with alpha-blockers can lead to a drop in blood pressure or to fainting
  • Medicines called HIV protease inhibitors, such as ritonavir (Norvir®), indinavir sulfate (Crixivan®), saquinavir (Fortovase® or Invirase®), or atazanavir sulfate (Reyataz®)
  • Oral antifungal medicines, such as ketoconazole (Nizoral®) and itraconazole (Sporanox®)
  • Antibiotics, such as clarithromycin (Biaxin®), telithromycin (Ketek®), or erythromycin
  • Other medicines that treat high blood pressure
  • Other medicines or solutions for ED
  • Viagra® and generic Viagra® contain sildenafil, which is the same medicine found in another drug called Revatio®. Revatio® is used to treat a rare disease called pulmonary arterial hypertension (PAH). Viagra® and generic Viagra® should not be used with Revatio® or with other PAH solutions containing sildenafil or any other PDE5 inhibitors (such as Adcirca [tadalafil])

Ask your healthcare provider or pharmacist for a list of these medicines, if you are not sure.

Know the medicines you take. Keep a list of them to show to your healthcare provider and pharmacist when you get a new medicine.

Viagra Side Effects

What are the possible side effects of Viagra® and generic Viagra®?

Viagra® and generic Viagra® can cause serious side effects. Rarely reported side effects include:

  • aan erection that will not go away (priapism). If you have an erection that lasts more than 4 hours, get medical help right away. If it is not treated right away, priapism can permanently damage your penis.
  • sudden vision loss in one or both eyes. Sudden vision loss in one or both eyes can be a sign of a serious eye problem called non-arteritic anterior ischemic optic neuropathy (NAION). It is uncertain whether PDE5 inhibitors directly cause the vision loss. Stop taking Viagra® and call your healthcare provider right away if you have sudden vision loss in one or both eyes.
  • sudden hearing decrease or hearing loss. Some people may also have ringing in their ears (tinnitus) or dizziness. If you have these symptoms, stop taking Viagra® or generic Viagra® and contact a doctor right away.
The most common side effects of Viagra® and generic Viagra® are:
  • headache
  • flushing
  • upset stomach
  • abnormal vision, such as changes in color vision (such as having a blue color tinge) and blurred vision
  • stuffy or runny nose
  • back pain
  • muscle pain
  • nausea
  • dizziness
  • Rash

In addition, heart attack, stroke, irregular heartbeats and death have happened rarely in men taking Viagra®. Most, but not all, of these men had heart problems before taking Viagra®. It is not known if Viagra® caused these problems

Tell your healthcare provider if you have any side effect that bothers you or does not go away.

These are not all the possible side effects of Viagra® and generic Viagra®. For more information, ask your healthcare provider or pharmacist.

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What Should You Know Before Taking Cialis?

Disclaimer: The information provided on this page is not a substitute for professional medical advice or diagnosis. If you have any questions or concerns about your health, please talk to a doctor.

Contraindications

Do not take Cialis® or generic Cialis® if you:
  • take medicines called "nitrates" (such as nitroglycerin)
  • use street drugs called "poppers" such as amyl nitrate or amyl nitrite, and butyl nitrate
  • take any medicines called guanylate cyclase stimulators such as riociguat (Adempas)
  • are allergic to sildenafil, as contained in Cialis® and Revatio, or any of the ingredients in Cialis®. See the end of this leaflet for a complete list of ingredients in Cialis®.
What should I tell my healthcare provider before taking Cialis® or generic Cialis®?

To make sure Cialis® is safe for you, tell your healthcare provider if you have any of the following before you take Cialis® or generic Cialis®:

  • Have or have had heart problems such as a heart attack,irregular heartbeat, angina, chest pain, narrowing of the aortic valve, or heart failure
  • Have had heart surgery within the last 6 months
  • Have pulmonary hypertension
  • Have had a stroke
  • Have low blood pressure, or high blood pressure that is not controlled
  • Have a deformed penis shape
  • Have had an erection that lasted for more than 4 hours
  • Have problems with your blood cells such as sickle cell anemia, multiple myeloma, or leukemia
  • Have retinitis pigmentosa, a rare genetic (runs in families) eye disease
  • Have ever had severe vision loss, including an eye problem called NAION
  • Have bleeding problems
  • Have or have had stomach or intestinal ulcers
  • Have liver problems
  • Have kidney problems or are having kidney dialysis
  • Have any other medical conditions

Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements.

Cialis® and generic Cialis® may affect the way other medicines work, and other medicines may affect the way Cialis® and generic Cialis® works, causing side effects.

Drug Interactions

Tell your healthcare provider if you take any of the following because these drugs interact with Cialis® and generic Cialis®:

  • Medicines called "nitrates"
  • Medicines called guanylate cyclase stimulators such as Adempas® (riociguat)
  • Medicines called alpha-blockers such as Hytrin® (terazosin HCl), Flomax® (tamsulosin HCl), Cardura® (doxazosin mesylate), Minipress® (prazosin HCl), Uroxatral® (alfuzosin HCl), Jalyn® (dutasteride and tamsulosin HCl), or Rapaflo® (silodosin). Alpha-blockers are sometimes prescribed for prostate problems or high blood pressure. In some patients, the use of Cialis® or generic Cialis® with alpha-blockers can lead to a drop in blood pressure or to fainting
  • Medicines called HIV protease inhibitors, such as ritonavir (Norvir®), indinavir sulfate (Crixivan®), saquinavir (Fortovase® or Invirase®), or atazanavir sulfate (Reyataz®)
  • Oral antifungal medicines, such as ketoconazole (Nizoral®) and itraconazole (Sporanox®)
  • Antibiotics, such as clarithromycin (Biaxin®), telithromycin (Ketek®), or erythromycin
  • Other medicines that treat high blood pressure
  • Other medicines or solutions for ED
  • Cialis® and generic Cialis® contain sildenafil, which is the same medicine found in another drug called Revatio®. Revatio® is used to treat a rare disease called pulmonary arterial hypertension (PAH). Cialis® and generic Cialis® should not be used with Revatio® or with other PAH solutions containing sildenafil or any other PDE5 inhibitors (such as Adcirca [tadalafil])

Ask your healthcare provider or pharmacist for a list of these medicines, if you are not sure.

Know the medicines you take. Keep a list of them to show to your healthcare provider and pharmacist when you get a new medicine.

Cialis Side Effects

What are the possible side effects of Cialis® and generic Cialis®?

Cialis® and generic Cialis ® can cause serious side effects. Rarely reported side effects include:

  • an erection that will not go away (priapism). If you have an erection that lasts more than 4 hours, get medical help right away. If it is not treated right away, priapism can permanently damage your penis.
  • sudden vision loss in one or both eyes. Sudden vision loss in one or both eyes can be a sign of a serious eye problem called non-arteritic anterior ischemic optic neuropathy (NAION). It is uncertain whether PDE5 inhibitors directly cause the vision loss. Stop taking Cialis® and call your healthcare provider right away if you have sudden vision loss in one or both eyes.
  • sudden hearing decrease or hearing loss. Some people may also have ringing in their ears (tinnitus) or dizziness. If you have these symptoms, stop taking Cialis® or generic Cialis® and contact a doctor right away.
The most common side effects of Cialis® and generic Cialis® are:
  • headache
  • flushing
  • upset stomach
  • abnormal vision, such as changes in color vision (such as having a blue color tinge) and blurred vision
  • stuffy or runny nose
  • back pain
  • muscle pain
  • nausea
  • dizziness
  • Rash

In addition, heart attack, stroke, irregular heartbeats and death have happened rarely in men taking Cialis®. Most, but not all, of these men had heart problems before taking Cialis®. It is not known if Cialis® caused these problems.

Tell your healthcare provider if you have any side effect that bothers you or does not go away.

These are not all the possible side effects of Cialis® and generic Cialis®. For more information, ask your healthcare provider or pharmacist.

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.



close

Important Safety Information

Erectile Dysfunction
Last Updated: Aug 15, 2024
Table of Contents
  1. Viagra
  2. Cialis
 

What Should You Know Before Taking Viagra?

Disclaimer: The information provided on this page is not a substitute for professional medical advice, diagnosis, or treatment. If you have any questions or concerns about your health, please talk to a doctor.

Contraindications

Do not take Viagra® or generic Viagra® if you:

  • take medicines called "nitrates" (such as nitroglycerin)

  • use street drugs called "poppers" such as amyl nitrate or amyl nitrite, and butyl nitrate

  • take any medicines called guanylate cyclase stimulators such as riociguat (Adempas)

  • are allergic to sildenafil, as contained in Viagra® and Revatio, or any of the ingredients in Viagra®. See the end of this leaflet for a complete list of ingredients in Viagra®.

What should I tell my healthcare provider before taking Viagra® or generic Viagra®?

To make sure Viagra® is safe for you, tell your healthcare provider if you have any of the following before you take Viagra® or generic Viagra®:

  • Have or have had heart problems such as a heart attack,irregular heartbeat, angina, chest pain, narrowing of the aortic valve, or heart failure

  • Have had heart surgery within the last 6 months

  • Have pulmonary hypertension

  • Have had a stroke

  • Have low blood pressure, or high blood pressure that is not controlled

  • Have a deformed penis shape

  • Have had an erection that lasted for more than 4 hours

  • Have problems with your blood cells such as sickle cell anemia, multiple myeloma, or leukemia

  • Have retinitis pigmentosa, a rare genetic (runs in families) eye disease

  • Have ever had severe vision loss, including an eye problem called NAION

  • Have bleeding problems

  • Have or have had stomach or intestinal ulcers

  • Have liver problems

  • Have kidney problems or are having kidney dialysis

  • Have any other medical conditions

Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements.

Viagra® and generic Viagra® may affect the way other medicines work, and other medicines may affect the way Viagra® and generic Viagra® works, causing side effects.

Drug Interactions

Tell your healthcare provider if you take any of the following because these drugs interact with Viagra® and generic Viagra®:

  • Medicines called "nitrates"

  • Medicines called guanylate cyclase stimulators such as Adempas® (riociguat)

  • Medicines called alpha-blockers such as Hytrin® (terazosin HCl), Flomax® (tamsulosin HCl), Cardura® (doxazosin mesylate), Minipress® (prazosin HCl), Uroxatral® (alfuzosin HCl), Jalyn® (dutasteride and tamsulosin HCl), or Rapaflo® (silodosin). Alpha-blockers are sometimes prescribed for prostate problems or high blood pressure. In some patients, the use of VIAGRA® or generic VIAGRA® with alpha-blockers can lead to a drop in blood pressure or to fainting

  • Medicines called HIV protease inhibitors, such as ritonavir (Norvir®), indinavir sulfate (Crixivan®), saquinavir (Fortovase® or Invirase®), or atazanavir sulfate (Reyataz®)

  • Oral antifungal medicines, such as ketoconazole (Nizoral®) and itraconazole (Sporanox®)

  • Antibiotics, such as clarithromycin (Biaxin®), telithromycin (Ketek®), or erythromycin

  • Other medicines that treat high blood pressure

  • Other medicines or treatments for ED

  • Viagra® and generic Viagra® contain sildenafil, which is the same medicine found in another drug called Revatio®. Revatio® is used to treat a rare disease called pulmonary arterial hypertension (PAH). Viagra® and generic Viagra® should not be used with Revatio® or with other PAH treatments containing sildenafil or any other PDE5 inhibitors (such as Adcirca [tadalafil])

Ask your healthcare provider or pharmacist for a list of these medicines, if you are not sure.

Know the medicines you take. Keep a list of them to show to your healthcare provider and pharmacist when you get a new medicine.

Viagra Side Effects

What are the possible side effects of Viagra® and generic Viagra®?

Viagra® and generic Viagra® can cause serious side effects. Rarely reported side effects include:

  • an erection that will not go away (priapism). If you have an erection that lasts more than 4 hours, get medical help right away. If it is not treated right away, priapism can permanently damage your penis.

  • sudden vision loss in one or both eyes. Sudden vision loss in one or both eyes can be a sign of a serious eye problem called non-arteritic anterior ischemic optic neuropathy (NAION). It is uncertain whether PDE5 inhibitors directly cause the vision loss. Stop taking Viagra® and call your healthcare provider right away if you have sudden vision loss in one or both eyes.

  • sudden hearing decrease or hearing loss. Some people may also have ringing in their ears (tinnitus) or dizziness. If you have these symptoms, stop taking Viagra® or generic Viagra® and contact a doctor right away.

The most common side effects of Viagra® and generic Viagra® are:

  • headache

  • flushing

  • upset stomach

  • abnormal vision, such as changes in color vision (such as having a blue color tinge) and blurred vision

  • stuffy or runny nose

  • back pain

  • muscle pain

  • nausea

  • dizziness

  • Rash

In addition, heart attack, stroke, irregular heartbeats and death have happened rarely in men taking Viagra®. Most, but not all, of these men had heart problems before taking Viagra®. It is not known if Viagra® caused these problems.

Tell your healthcare provider if you have any side effect that bothers you or does not go away.

These are not all the possible side effects of Viagra® and generic Viagra®. For more information, ask your healthcare provider or pharmacist.

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

 

What Should You Know Before Taking Cialis

Disclaimer: The information provided on this page is not a substitute for professional medical advice, diagnosis, or treatment. If you have any questions or concerns about your health, please talk to a doctor.

Contraindications

Who should not take Cialis® or generic Cialis®? Do not take Cialis® or generic Cialis® if you:

  • take medicines called nitrates (such as nitroglycerin)

  • use street drugs called "poppers" such as amyl nitrate or amyl nitrite, and butyl nitrate

  • take any medicines called guanylate cyclase stimulators such as riociguat (Adempas)

  • are allergic to Cialis® or any of the ingredients in Cialis®. See the end of this section for a complete list of ingredients in Cialis®.

What should I tell my healthcare provider before taking Cialis® or generic Cialis®?

To make sure Cialis® is safe for you, tell your healthcare provider if you have any of the following before you take Cialis® or generic Cialis®?:

  • Have or have had heart problems such as a heart attack,irregular heartbeat, angina, chest pain, narrowing of the aortic valve, or heart failure

  • Have had heart surgery within the last 6 months

  • Have pulmonary hypertension

  • Have had a stroke

  • Have low blood pressure, or high blood pressure that is not controlled

  • Have a deformed penis shape

  • Have had an erection that lasted for more than 4 hours

  • Have problems with your blood cells such as sickle cell anemia, multiple myeloma, or leukemia

  • Have retinitis pigmentosa, a rare genetic (runs in families) eye disease

  • Have ever had severe vision loss, including an eye problem called NAION

  • Have bleeding problems

  • Have or have had stomach or intestinal ulcers

  • Have liver problems

  • Have kidney problems or are having kidney dialysis

  • Have any other medical conditions

Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements.

Cialis® and generic Cialis® may affect the way other medicines work, and other medicines may affect the way Cialis® and generic Cialis® works, causing side effects.

Drug Interactions

Tell your healthcare provider if you take any of the following because these drugs interact with Cialis® and generic Cialis®:

  • Medicines called nitrates

  • Medicines called guanylate cyclase stimulators such as Adempas® (riociguat)

  • Medicines called alpha-blockers such as Hytrin® (terazosin HCl), Flomax® (tamsulosin HCl), Cardura® (doxazosin mesylate), Minipress® (prazosin HCl), Uroxatral® (alfuzosin HCl), Jalyn® (dutasteride and tamsulosin HCl), or Rapaflo® (silodosin). Alpha-blockers are sometimes prescribed for prostate problems or high blood pressure. In some patients, the use of Cialis® or generic Cialis® with alpha-blockers can lead to a drop in blood pressure or to fainting

  • Medicines called HIV protease inhibitors, such as ritonavir (Norvir®), indinavir sulfate (Crixivan®), saquinavir (Fortovase® or Invirase®), or atazanavir sulfate (Reyataz®)

  • Oral antifungal medicines, such as ketoconazole (Nizoral®) and itraconazole (Sporanox®)

  • Antibiotics, such as clarithromycin (Biaxin®), telithromycin (Ketek®), or erythromycin

  • Other medicines that treat high blood pressure

  • Other medicines or treatments for ED

  • Adcirca® (tadalafil) is used to treat a rare disease called pulmonary arterial hypertension (PAH) and has the same active ingredient as Cialis®. Cialis® and generic Cialis® should not be used with Adcirca® or with other PAH treatments containing sildenafil or any other PDE5 inhibitors (such as Revatio® [sildenafil citrate])

Ask your healthcare provider or pharmacist for a list of these medicines, if you are not sure.

Know the medicines you take. Keep a list of them to show to your healthcare provider and pharmacist when you get a new medicine.

Cialis Side Effects

What are the possible side effects of Cialis® and generic Cialis®?

Cialis® and generic Cialis® can cause serious side effects. Rarely reported side effects include:

  • an erection that will not go away (priapism). If you have an erection that lasts more than 4 hours, get medical help right away. If it is not treated right away, priapism can permanently damage your penis.

  • sudden vision loss in one or both eyes. Sudden vision loss in one or both eyes can be a sign of a serious eye problem called non-arteritic anterior ischemic optic neuropathy (NAION). It is uncertain whether PDE5 inhibitors directly cause the vision loss. Stop taking Cialis® and call your healthcare provider right away if you have sudden vision loss in one or both eyes.

  • sudden hearing decrease or hearing loss. Some people may also have ringing in their ears (tinnitus) or dizziness. If you have these symptoms, stop taking Cialis® or generic Cialis® and contact a doctor right away.

The most common side effects of Cialis® and generic Cialis® are:

  • headache

  • flushing

  • upset stomach

  • abnormal vision, such as changes in color vision (such as having a blue color tinge) and blurred vision

  • stuffy or runny nose

  • back pain

  • muscle pain

  • nausea

  • dizziness

  • Rash

In addition, heart attack, stroke, irregular heartbeats and death have happened rarely in men taking Cialis®. Most, but not all, of these men had heart problems before taking Cialis®. It is not known if Cialis® caused these problems.

Tell your healthcare provider if you have any side effect that bothers you or does not go away.

These are not all the possible side effects of Cialis® and generic Cialis®. For more information, ask your healthcare provider or pharmacist.

Talk to your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What Happens if I Overdose?

Taking more than the recommended amount of Cialis® or generic Cialis® greatly increases your risk of side effects, including severe ones that can be dangerous, such as severe low blood pressure or an erection that won’t go away even after 4 or more hours (priapism). Never take more than the amount prescribed to you by your doctor. If you have any severe side effects after taking more than the recommended amount, or even after taking the amount of medicine prescribed to you, seek out emergency medical attention immediately.