Better sex, whenever you want.

Start here

Do Blood Thinners Cause Erectile Dysfunction?

Vicky Davis

Reviewed by Vicky Davis, FNP

Written by Nicholas Gibson

Published 03/11/2023

If you suffer from a heart or blood vessel issue that increases your risk of experiencing a blood clot, your healthcare provider might suggest using a blood thinner to reduce your risk and keep you healthy. 

More than two million people in the United States take blood thinners on a daily basis, making them some of the most common prescription medications on the market.

Erectile dysfunction, or ED, is also common. It’s a sexual performance issue that can happen in men of all ages and backgrounds, and is often triggered by medical conditions or certain types of medication. 

But are blood thinners one of the types of medicine that can cause ED?

Currently, there’s no high-quality scientific research to suggest that blood thinners either cause or contribute to erectile dysfunction. However, some cardiovascular health conditions for which blood thinners are prescribed have been linked to ED. 

Below, we’ve explained what blood thinners are, as well as why your healthcare provider might suggest using blood thinner medication. 

We’ve also gone into detail on the possible link between blood thinners, cardiovascular disease and issues that can affect your erectile function.

Finally, we’ve covered treatment options that you may want to consider if you're one of the tens of millions of men affected by ED and want to improve your erections and sexual health. 

Choose your chew

Add a boost to your sex life with our new chewable formats

What Are Blood Thinners?

Blood thinners are prescription medications that are used to prevent blood clots from forming in your veins.

Clotting, or coagulation, is a critical process that prevents you from bleeding excessively when a capillary, vein or artery in your body is injured. When an injury happens, blood cells and proteins develop into a blood clot, which helps stop the bleeding.

As you heal, the blood clots formed naturally inside your body slowly dissolve, allowing blood to flow normally.

Although blood clots are essential for effective healing, they can sometimes develop inside your blood vessels without breaking down properly. Some people also develop blood clots without an injury occurring.

These blood clots can be harmful, as they can detach from your blood vessels and travel to your heart, lungs or other essential organs. This can result in serious medical issues, including heart attacks, strokes and pulmonary embolisms. 

There are two main types of blood thinner medications. The first type, anticoagulants, lower your risk of blood clots by slowing down the internal process that your body uses to produce blood clots. Common anticoagulant medications include heparin and warfarin. 

The second type, antiplatelets, work by preventing blood cells called platelets from clumping to plug holes in your blood vessels. Common antiplatelets include the medications aspirin and clopidogrel.

If you have an elevated risk of blood clots, your healthcare provider might recommend that you take a blood thinner to decrease your risk, especially if you have a high risk of stroke or heart attack.

For example, you may be prescribed a blood thinner if you have:

  • Atrial fibrillation, a type of abnormal heart rhythm

  • Certain types of heart and/or blood vessel disease

  • Recently undergone surgery and have a high risk of clotting

  • A congenital heart defect that increases your risk of blood clots

  • Undergone heart valve repair or replacement surgery


If you’re prescribed a blood thinner, it’s important to use it exactly as your healthcare provider tells you to. They will also tell you about potential interactions, as well as specific steps that you can follow to stay safe while using your medication. 

What is Erectile Dysfunction?

Erectile dysfunction is a common sexual issue that affects men. If you have ED, you may find it difficult to get an erection, maintain an erection that’s hard enough for sexual intercourse or get an erection on a consistent basis.

ED is most common in older men, but it can occur in men of all ages. In fact, research suggests that an estimated 30 million in the United States are affected by erectile dysfunction.

Our guide to erectile dysfunction symptoms goes into more detail about common warning signs that you may have ED. 

Do Blood Thinners Cause Erectile Dysfunction?

Erectile dysfunction can develop for a number of reasons, including physical health conditions and mental health issues such as depression, stress and sexual performance anxiety.

Certain habits, such as smoking, being physically inactive or eating an unhealthy diet, may also contribute to a higher risk of developing ED.

Like many other conditions that can affect sexual activity, erectile dysfunction can also occur as a side effect of certain medications.

For example, some medications used to treat high blood pressure, prostate cancer, depression, anxiety, sleep issues and stomach ulcers are linked to an increased risk of difficulty achieving a natural erection.

If you’re prescribed a blood thinner and suffer from erectile dysfunction, it’s normal to wonder if your medication might be responsible.

However, there isn’t any current, reliable evidence to suggest that blood thinners can cause erectile dysfunction or make existing ED symptoms more severe. 

In fact, some of the evidence that is available suggests that certain blood thinner medications, such as aspirin, might improve erections and sexual function in men with ED caused by heart disease.

However, one thing to keep in mind is that blood thinners are often prescribed alongside other medications for your heart and vascular system, including some that may cause ED.

For example, many medications for hypertension (high blood pressure), heart failure and other cardiovascular health issues are linked to an increased risk of erectile dysfunction.

These medications, which include thiazides diuretics, beta blockers and alpha blockers, have a potential side effect of either causing erectile dysfunction or making your existing ED problems more noticeable and severe.

Some cholesterol-lowering medications, which are also commonly used to treat cardiovascular health issues, may also cause or contribute to ED.

This means that if you’re prescribed other heart or blood pressure medications for use with an anticoagulant or antiplatelet blood thinner, you might experience ED symptoms even if they’re not directly caused by the blood thinner itself.

Another thing to keep in mind is that many health conditions for which blood thinners are used as treatments are also linked to erectile dysfunction.

For example, common physical health issues that can cause erectile dysfunction include heart and blood vessel disease, atherosclerosis (clogged arteries), high blood pressure, injuries that affect your penis and/or surrounding area, type 2 diabetes and multiple sclerosis (MS).

Many of these health issues can affect blood flow throughout your body, and result in poor blood flow to the erectile tissue inside your penis that’s critical in getting and maintaining an erection. 

If you have one or several of these risk factors for ED, you might experience ED while taking a blood thinner even if your medication has no effect on your sexual function.

Our full guide to the causes of erectile dysfunction discusses physical health problems, mental health issues and other factors that may cause or contribute to ED.

Choose your chew

Add a boost to your sex life with our new chewable formats

How to Treat Erectile Dysfunction

If you’ve been taking a blood thinner and feel like it’s more difficult for you to get and/or maintain an erection than it was before, it’s important to talk to your healthcare provider.

Erectile dysfunction is treatable, and letting your healthcare provider know that you’re finding it difficult to get or stay hard is a good first step towards learning more about your options and, if appropriate, taking action.

If your ED is caused by a physical health issue that affects the blood supply to your penis, your healthcare provider may suggest treating the specific issue. This could mean using medication or making changes to your habits and lifestyle.

Prescription Medications for ED

In some cases, you may be prescribed ED medication to treat erectile dysfunction and improve your sexual function. 

Currently, all oral medications for ED are part of a class of drugs called PDE5 inhibitors, which work by expanding the blood vessels that supply your penis and improving blood flow to your erectile tissue. 

Popular ED medications include sildenafil (the active ingredient in Viagra®), tadalafil (Cialis®), vardenafil (Levitra®) and avanafil (Stendra®). 

We offer numerous ED medications online, which can be prescribed following a consultation with a healthcare provider who will determine if a prescription is appropriate for you.

If you’re considering medication for ED, it’s important to inform your healthcare provider about all medications and recreational drugs you currently use or have recently used.

Erectile dysfunction medications are safe and effective for most men, but they can interact with some medications used to treat high blood pressure, as well as recreational drugs that contain ingredients called nitrates

We’ve discussed these interactions more, as well as how you can avoid them, in our full guide to common sildenafil interactions

Choose your chew

Sildenafil Chews

The same active ingredients as Viagra®. Starts working in 30 minutes and lasts up to 6 hours.

Tadalafil Chews

Same active ingredient as Cialis®. Starts working in 1 hour and lasts up to 24 hours.

Vardenafil Hard Mints

Exclusively at Hims, starts working in 15 minutes and lasts up to 6 hours. Same active ingredients as Levitra®.

Adjusting Your Dosage of Existing Medications

If you’re currently prescribed a medication that could cause erectile dysfunction, like some medications to treat heart disease or high blood pressure, your healthcare provider may suggest adjusting your dosage.

They may temporarily switch you to a lower dose to see if your symptoms improve, or suggest a similar medication that’s less likely to cause issues.

Make sure to talk with your healthcare provider before making any changes to the way you take your medication. 

Lifestyle Changes for Better Erections and Sexual Health

In addition to taking medication for ED, making small but meaningful changes to your habits and daily life can often have a positive impact on your ability to get an erection and enjoy a satisfying sex life. 

Often, simple changes such as limiting your alcohol consumption, increasing the total amount of physical exercise you get, maintaining a healthy body weight and avoiding illicit substances can improve blood flow to your penis and make getting an erection easier.

If you think your erectile dysfunction is caused by stress, depression, anxiety or another mental health issue, talk therapy may also help.

Other changes, such as following a healthy diet, quitting smoking and taking steps to lower your risk of chronic health conditions can also help to treat and prevent ED.

Our guide to naturally maintaining an erection goes into greater detail about habits and lifestyle changes that you can use for healthier erections and better sexual function. 

Sildenafil citrate

Get hard for 95% cheaper than Viagra

The Bottom Line on Blood Thinners and Erectile Dysfunction

Do blood thinners cause erectile dysfunction? Currently, there’s no scientific research to suggest that taking a blood thinner increases your risk of experiencing ED, changes in sexual arousal or any other sex-related health issues. 

However, several medical conditions that are common in people prescribed blood thinners, such as high blood pressure and heart disease, are linked to erectile dysfunction. 

If you’re prescribed blood thinners and find it difficult to get or stay hard during sex, it’s important to inform your healthcare provider. They may suggest adjusting your dosage, changing to a new type of medication or using medication to improve blood flow and treat ED.

If you’re interested in accessing professional help for erectile dysfunction, you can take part in a private ED consultation online. If appropriate, you may receive a prescription for ED medication to improve your erections and sexual function.

Want to learn more before you get started? Our guide to the most common ED treatments goes into more detail about how erectile dysfunction medications work, from their average duration to dosages, side effects and more.

8 Sources

  1. Blood Thinner Pills: Your Guide to Using Them Safely. (2018, November). Retrieved from https://www.ahrq.gov/patients-consumers/diagnosis-treatment/treatments/btpills/btpills.html
  2. Blood Clots. (n.d.). Retrieved from https://www.hematology.org/education/patients/blood-clots
  3. Blood Thinners. (2022, January 31). Retrieved from https://medlineplus.gov/bloodthinners.html
  4. Symptoms & Causes of Erectile Dysfunction. (2017, July). Retrieved from https://www.niddk.nih.gov/health-information/urologic-diseases/erectile-dysfunction/symptoms-causes
  5. Definition & Facts for Erectile Dysfunction. (2017, July). Retrieved from https://www.niddk.nih.gov/health-information/urologic-diseases/erectile-dysfunction/definition-facts
  6. Irfan, M., Ismail, S.B., Noor, N.M. & Hussain, N.H. (2020). Efficacy of Aspirin for Vasculogenic Erectile Dysfunction in Men: A Meta-Analysis of Randomized Control Trials. American Journal of Men’s Health. 14 (5), 1557988320969082. Retrieved from https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7607788/
  7. Treatment for Erectile Dysfunction. (2017, July). Retrieved from https://www.niddk.nih.gov/health-information/urologic-diseases/erectile-dysfunction/treatment
  8. Preventing Erectile Dysfunction. (2017, July). Retrieved from https://www.niddk.nih.gov/health-information/urologic-diseases/erectile-dysfunction/prevention
Editorial Standards

Hims & Hers has strict sourcing guidelines to ensure our content is accurate and current. We rely on peer-reviewed studies, academic research institutions, and medical associations. We strive to use primary sources and refrain from using tertiary references. See a mistake? Let us know at [email protected]!

This article is for informational purposes only and does not constitute medical advice. The information contained herein is not a substitute for and should never be relied upon for professional medical advice. Always talk to your doctor about the risks and benefits of any treatment. Learn more about our editorial standards here.

Vicky Davis, FNP

Dr. Vicky Davis is a board-certified Family Nurse Practitioner with over 20 years of experience in clinical practice, leadership and education. 

Dr. Davis' expertise include direct patient care and many years working in clinical research to bring evidence-based care to patients and their families. 

She is a Florida native who obtained her master’s degree from the University of Florida and completed her Doctor of Nursing Practice in 2020 from Chamberlain College of Nursing

She is also an active member of the American Academy of Nurse Practitioners.

Read more