Erectile Dysfunction / Gabapentin And Erectile Dysfunction

Gabapentin and Erectile Dysfunction: Precautions, Sexual Side Effects, and How to manage them

Written by Dr. Anvi Dogra
August 17, 2025
Gabapentin and Erectile Dysfunction: Precautions, Sexual Side Effects, and How to manage them

Gabapentin is a medicine used for treating seizures, nerve pain, restless leg syndrome and other conditions like diabetes and shingles. Many men wonder if it can cause erectile dysfunction. Gabapentin and erectile dysfunction are linked, but not everyone who takes it will have ED. Age, testosterone levels, other medicines, and health issues like diabetes or high blood pressure can increase the risk. Most cases of gabapentin erectile dysfunction can be reversed. Adjusting the dose or changing the medicine under a doctor’s guidance can help. Recovery time can be different for each person.  In this article, we will explain how gabapentin can cause erectile dysfunction, why it happens, who is more likely to get it, and whether the effects can be permanent.

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Have you ever experienced sexual side effects while taking gabapentin?

Does Gabapentin Cause Erectile Dysfunction?

Yes, gabapentin can cause erectile dysfunction in men. Some men taking gabapentin have reported [1]

  • A dip in sexual desire
  • Difficulty in achieving or maintaining an erection
  • Trouble reaching orgasm and ejaculation
  • A complete loss of sexual function (rare cases)

Earlier, it was thought that these side effects occur only at higher doses of around 900 mg per day. But some clinical studies [2] and case reports suggest that sexual dysfunction from gabapentin can also happen even at lower doses, such as 300 mg total daily dose.

Medical infographic showing gabapentin and erectile dysfunction with capsule, male silhouette, and symptoms.

How Can Gabapentin Cause Erectile Dysfunction?

The reason behind gabapentin erectile dysfunction is not clear. But some factors have been believed to cause this. 

Disturb nerve pathways

Gabapentin helps in reducing the nerve pain and seizures. It works by calming the nerve signals in the brain and spinal cord. Sexual arousal is a result of communication between the signals of the brain and penis. Gabapentin also affects these brain chemicals and nerve pathways that play a role in sexual desire and performance. This leads to disturbance in the sexual arousal and ability to maintain proper erections.

Hormonal imbalance

Gabapentin can lower testosterone levels, which play a role in sexual desire and performance. These effects can be reversed once the drug is stopped [3].

Anxiety and tiredness

Gabapentin can cause side effects like anxiety, tiredness, and dizziness. These can make sexual activity less interesting and make it difficult to achieve erections [4].

Gabapentin acts on nerve pathways to reduce pain, but these same pathways affect sexual desire also. Patients who notice changes in sexual performance should speak with their doctor before making any changes to their medication.

Infographic explaining how Gabapentin and erectile dysfunction occur through nerve pathway issues, hormonal imbalance, and anxiety.

Can Gabapentin Cause Erectile Dysfunction in Everyone?

Healthcare professionals prescribe gabapentin, but that does not mean that everyone who takes it will have erectile dysfunction. Some men can tolerate the drug without having any side effects on their sex life. But there are a few men who may suffer from gabapentin erectile dysfunction.The effects on sex life may be seen in men who:

  • Are on higher doses of gabapentin regularly
  • Take other medications and drugs that can affect erectile dysfunction. Medications like antidepressants, beta-blockers, anti-allergics, and other substances can interact with gabapentin and cause sexual dysfunction.
  • Have underlying metabolic conditions like diabetes, high blood pressure, or depression
  • Are aged and have low testosterone production.

Is Gabapentin Erectile Dysfunction Permanent?

The connection between the gabapentin and erectile dysfunction is clear. But the main question arises whether ED caused by gabapentin is permanent. The good news is that in a lot of cases ED gets improved by either reducing the dose or stopping its intake. However, quitting the drug on your own is not a solution. Always take advice from a healthcare professional before replacing and quitting the drug. Recovery time can vary from person to person. Some men may see improvement within days and for some it may take weeks and months. In few people the ED may not improve even after stopping the drug. This could be due to the drug usage for a very long time or the presence of other risk factors like aging, diseases or drug interaction.

The Bottom Line About Gabapentin And Erectile Dysfunction

Gabapentin erectile dysfunction is a real concern for some men, but it does not affect everyone in the same way. While some men may experience reduced sexual performance, erection problems, or delayed orgasm even at lower doses, others may not experience any sexual side effects. The risk is higher in men who take high doses of drugs long-term, those with underlying medical conditions, and those who take drugs that affect sexual health. The good part is that in many cases these sexual dysfunction symptoms can be improved after adjusting the dose or stopping the medication under medical supervision. If you notice changes in your sexual function while on gabapentin, do not stop it on your own. Talk to your healthcare professional about alternative drugs and treatment options. Addressing underlying conditions, lifestyle factors, and proper medical guidance can help manage both nerve pain and sexual health effectively.

Most Asked Questions

Can gabapentin cause erectile dysfunction?

Yes, gabapentin can cause erectile dysfunction in some men. It’s not very common, but studies show it may affect sexual function, especially at higher doses or in men with other health issues.

What are the side effects of gabapentin for men?

Common side effects of gabapentin for men include dizziness, fatigue, weight gain, and sometimes sexual problems like low libido, difficulty maintaining erections, or delayed ejaculation.

Can you take Viagra if you take gabapentin?

Yes, many men can take Viagra while using gabapentin, but you should ask your doctor first. Viagra may help improve erections, but your doctor needs to check for drug interactions and your overall health.

Is taking gabapentin long term harmful?

Gabapentin is generally safe for long-term use when prescribed, but it may lead to side effects such as drowsiness, memory issues, weight gain, or sexual dysfunction. Regular medical checkups are important.

Does gabapentin lower testosterone?

There is no strong evidence that gabapentin directly lowers testosterone. However, it may affect sexual function through changes in brain chemistry and neurotransmitters, which can feel similar to low testosterone symptoms.

Is gabapentin linked to infertility?

Gabapentin is not directly linked to infertility, but its sexual side effects like erectile dysfunction, low libido, and ejaculation problems can make conception more difficult. These effects usually improve once the dose is adjusted or the drug is stopped