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Erectile Dysfunction Treatment

You can get effective and affordable prescription ED treatments online without seeing a doctor in person.
  • Free online consultation
  • FDA-approved ED medications
  • Treatments for as little as $2 per dose
  • US-licensed healthcare providers
  • Fast, free, discreet shipping
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About Erectile Dysfunction

It’s more common than you think.

Erectile dysfunction (ED) is the inability to get or maintain an erection strong enough for sex. ED is an extremely common condition that affects millions of men worldwide. In fact, roughly 52% of men will experience ED symptoms in their lifetime — often, before the age of 40. Fortunately, men can get treatments for erectile dysfunction online, right from their computers or smartphones. With Rex MD, the process is quick, discreet, and affordable — no in-person doctor visit needed.

52%

of men ages 40-70 experience some form of erectile dysfunction in their life.

What causes ED?

Erectile dysfunction can be caused by a variety of physiological and psychological factors. Physiological issues that can contribute to ED include heart disease, high cholesterol, high blood pressure, diabetes, obesity, and smoking. Psychological issues that can contribute to ED include depression, anxiety, stress, and relationship problems.

Can ED be treated?

Yes! ED is an extremely treatable condition, so there is no need for you and your partner to suffer unnecessarily. Rex MD offers a variety of prescription erectile dysfunction medications including “name brand” and generic versions of Viagra and Cialis. These medications are part of a class of drugs known as PDE5 inhibitors. PDE5 inhibitors relax the blood vessels in the penis to help increase healthy blood flow. With arousal, this allows for the penis to become erect. A Rex MD healthcare provider will review the answers of your free online consultation to determine if an erectile dysfunction treatment is right for you.

Explore Our ED Medications

Generic Viagra (Sildenafil)

From $2 per use

Sildenafil is the unbranded, more affordable, generic version of Viagra. It is taken on an as-needed basis for planned intimate encounters.

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ⓘ Important safety information ›

Branded Viagra®

From $96 per use

This is the branded version of sildenafil.

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ⓘ Important safety information ›

Generic Cialis (Tadalafil)

From $6 per use

Tadalafil is the unbranded, more affordable, generic version of Cialis. It is taken on an as-needed basis for planned intimate encounters.

Get Started Learn more
ⓘ Important safety information ›

Branded Cialis®

From $29 per use

This is the branded version of tadalafil.

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ⓘ Important safety information ›

Daily Generic Cialis (Tadalafil)

From $2 per use

This is the unbranded, more affordable generic version of Cialis Daily. It is taken every day to allow for spontaneous intimate encounters.

Get Started Learn more
ⓘ Important safety information ›

Erectile Dysfunction FAQs

What medications cause erectile dysfunction?

Antidepressants, anti-ulcer drugs, tranquilizers, and diuretics all have the potential to cause ED symptoms. Antihistamines and some anticancer drugs may also cause issues. Be sure to disclose any and all medications you are taking when you complete your online consultation, regardless of whether you believe they are contributing to your ED.

Does masturbation cause erectile dysfunction?

No, masturbation cannot cause ED. Masturbation is natural and does not affect the quality or frequency of erections.

Why is it important to seek help for ED?

ED can have a massive impact on a person’s confidence, happiness, and romantic relationships. It is also a warning sign for serious, underlying health problems that need to be investigated further.

Is ED medication effective?

Yes! Rex MD offers prescription ED medications that have been clinically proven to treat the symptoms of erectile dysfunction.

Why do you need to know my blood pressure?

ED medication affects your blood vessels, so an accurate blood pressure reading will help us determine if treatment is right for you. Fortunately, getting a blood pressure reading is quick and easy. Most commercial pharmacies have machines that can accurately measure your blood pressure for free.

Can I take ED medication more than once per day?

Prescription ED medication should not be taken more than once a day. If you plan on having sex at different times during the day, you may want to try Generic Cialis Daily, which is designed to allow for spontaneous intimate encounters.

Will ED medication automatically give me an erection?

No, you must be sexually aroused to achieve an erection with ED medication.

Which erectile dysfunction drug is the best?

It depends on the patient. A doctor will review your information to determine which medication best fits your needs.

Why can't I take these medications with nitrates or nitroglycerin?

Taking prescription ED treatment in combination with nitrates or nitroglycerin (typically prescribed for heart conditions) can lead to a severe and potentially fatal drop in blood pressure.

How is Rex MD different from other ED treatment providers?

Rex MD is an online treatment provider that allows you to get prescription ED medication quickly and discreetly — without sitting in a waiting room or seeing a doctor in person. It also offers fast, free shipping, which means you don’t have to pick your medication up at your neighborhood pharmacy. Last but not least, Rex MD offers FDA-approved, prescription ED treatments for up to 90% cheaper than many competitors.

See more common questions ⌄

Steps for Getting Treatment

1. Free online consultation

Answering questions about your symptoms and health history.

2. Personalized review

If appropriate a licensed physician will prescribe a treatment plan that meets your needs.

3. Fast, discreet shipping

Your medication will ship out in discreet packaging within two days.

4. Ongoing support

Contact our team anytime to discuss your treatment and make adjustments, if needed.

Real Members.
Verified Reviews.

Michael G.

“I’ve attempted to use two other sites and they made it exceptionally difficult and drawn out. Your system was quick and efficient.”

Ben T.

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

Dan D.

“Actually I was skeptical at first. After a painless questionnaire everything worked out great.”

Scott S.

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

Alan S.

“Keep making your customer service awesome for all customers.”

Dave P.

“Was actually easy for a non computer savvy old man.”

John B.

“Love your service and product. Changed everything for the better. THANK YOU !!!”

Chris W.

“There’s always improvements on everything but this service is well organized and I think a lot of customers will be very satisfied like I am.”

Billy I.

“The service was great and the price was affordable.”

Michael G.

“I’ve attempted to use two other sites and they made it exceptionally difficult and drawn out. Your system was quick and efficient.”

Ben T.

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

Dan D.

“Actually I was skeptical at first. After a painless questionnaire everything worked out great.”

Scott S.

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

Alan S.

“Keep making your customer service awesome for all customers.”

Dave P.

“Was actually easy for a non computer savvy old man.”

John B.

“Love your service and product. Changed everything for the better. THANK YOU !!!”

Chris W.

“There’s always improvements on everything but this service is well organized and I think a lot of customers will be very satisfied like I am.”

Billy I.

“The service was great and the price was affordable.”

Do you ever have a problem getting or maintaining an erection that is satisfying enough for sex?

Yes, everytime Yes, on occasion Yes, more than half the time Yes, but rarely

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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.