Risperidone and Erectile Dysfunction Explained

Risperidone and Erectile Dysfunction: What You Need to Know

Published: 14 October 2026

Risperidone erectile dysfunction is a well-documented side effect that affects a significant number of men taking this antipsychotic medication. Risperidone can interfere with erections through several mechanisms, including raising prolactin levels and affecting dopamine pathways that are important for sexual function. If you're experiencing erection problems while taking risperidone, it's important to know that treatment options are available and that you should never stop or reduce your prescribed medication without professional advice.

Can Risperidone Cause Erectile Dysfunction?

Yes, risperidone can cause erectile dysfunction and is recognised as one of the antipsychotic medications most likely to affect sexual function [1][2]. Risperidone works by blocking dopamine receptors in the brain, which helps manage symptoms of schizophrenia, bipolar disorder, and other conditions. However, this dopamine-blocking action can also interfere with the brain pathways involved in sexual arousal and erections.

One of the main ways risperidone causes erectile problems is by significantly raising prolactin levels in the blood. Prolactin is a hormone that, when elevated, can suppress testosterone production and directly interfere with erectile function. Studies show that risperidone causes higher prolactin elevations than many other antipsychotic medications, making sexual side effects particularly common with this drug.

The medication may also affect blood flow and the autonomic nervous system, both of which play crucial roles in achieving and maintaining an erection. Additionally, risperidone can reduce libido (sex drive), which may contribute to difficulties with sexual function even when physical erectile capacity is preserved.

How Common Is Risperidone Erectile Dysfunction?

Sexual dysfunction, including erectile problems, is reported by a substantial proportion of men taking risperidone, though exact figures vary between studies. Research suggests that sexual side effects occur in anywhere from 30% to over 60% of men on risperidone, depending on the dose and individual factors. Erectile dysfunction specifically is one of the most frequently reported sexual problems alongside reduced libido and ejaculatory difficulties.

The risk tends to be dose-related, meaning higher doses of risperidone are more likely to cause or worsen erectile problems. Men taking long-acting injectable forms of risperidone may also experience these effects. It's worth noting that sexual side effects are often under-reported because many men feel uncomfortable discussing them with their healthcare team, so the true prevalence may be even higher than clinical trials suggest.

Individual variation is significant—some men experience noticeable erectile difficulties soon after starting risperidone, while others may develop problems gradually over months. Factors such as age, overall health, other medications, and baseline sexual function all influence whether and how severely risperidone affects erections [1][2].

What NOT to Do If You Experience Erection Problems on Risperidone

If you're experiencing erectile dysfunction while taking risperidone, the most important thing to remember is: never stop, reduce, or change your prescribed medication without first speaking to your doctor or psychiatrist. Risperidone is prescribed to manage serious mental health conditions, and stopping it abruptly or without medical supervision can lead to a relapse of symptoms, withdrawal effects, or a mental health crisis.

Similarly, do not adjust the dose yourself or skip doses in the hope that it will improve your erections. Even if the erectile problems are distressing, the underlying condition that risperidone treats requires consistent management. Any changes to your antipsychotic medication must be carefully planned and monitored by your prescribing doctor.

Avoid using erectile dysfunction treatments obtained without a proper medical consultation, including tablets bought online without a prescription or from unregulated sources. While ED medications can often be used safely alongside risperidone, they require a clinical assessment to check for interactions with your other medicines and to ensure they're appropriate for your overall health. Your prescriber and pharmacist will review your full medication list during any consultation for ED treatment.

Why Continuing Your Prescribed Treatment Matters

Risperidone is typically prescribed for conditions such as schizophrenia, bipolar disorder, or severe behavioural problems, all of which can have serious consequences if left untreated or poorly managed. The benefits of controlling these conditions almost always outweigh the distress of sexual side effects, even though the latter are undoubtedly important to quality of life. Your healthcare team can work with you to find solutions that address both your mental health and your sexual wellbeing, but this requires open communication and professional guidance rather than self-adjustment of medication.

Options to Discuss With Your Prescriber About Risperidone and ED

If risperidone is affecting your erections, several options may be worth discussing with your doctor or psychiatrist. The right approach depends on how well risperidone is controlling your mental health symptoms, the severity of the erectile dysfunction, and your individual circumstances. It's important to have an honest conversation about how the sexual side effects are impacting your quality of life.

One option is adjusting the dose of risperidone to the lowest effective level that still manages your symptoms. In some cases, a modest dose reduction can lessen sexual side effects while maintaining adequate control of the underlying condition. However, this must be done carefully under medical supervision to avoid destabilising your mental health.

Your prescriber might consider switching to a different antipsychotic medication that has a lower risk of sexual side effects. Some alternatives, such as aripiprazole or quetiapine, are less likely to raise prolactin levels and may cause fewer erectile problems. Any switch needs to be gradual and closely monitored, as different antipsychotics have different efficacy and side-effect profiles for each individual.

Another approach is adding a medication to counteract the high prolactin levels caused by risperidone. Dopamine agonists such as aripiprazole (at a low dose) are sometimes used for this purpose, though this strategy requires specialist input. Finally, treating the erectile dysfunction directly with PDE5 inhibitor medications (such as sildenafil or tadalafil) is often effective and can be used alongside risperidone in most cases, as discussed below.

Checking Prolactin Levels

Your doctor may arrange a blood test to measure your prolactin level. Elevated prolactin (hyperprolactinaemia) is a common cause of sexual dysfunction with risperidone and can also lead to other symptoms such as breast enlargement or tenderness. If prolactin is significantly raised, this information can guide decisions about dose adjustment, switching medication, or adding treatments to lower prolactin.

Can You Use Erectile Dysfunction Tablets With Risperidone?

In most cases, yes—erectile dysfunction tablets such as sildenafil (Viagra), tadalafil (Cialis), vardenafil (Levitra), and avanafil (Spedra) can usually be used safely alongside risperidone [3][4][5][6]. These medications, known as PDE5 inhibitors, work by increasing blood flow to the penis during sexual stimulation and do not have a major direct interaction with risperidone itself.

However, a full clinical assessment is essential before starting any ED treatment. Both risperidone and PDE5 inhibitors can lower blood pressure, so your prescriber will need to check that the combination is safe for you, particularly if you have cardiovascular conditions or take other blood-pressure medications. You must declare all your current medicines, including risperidone and any other antipsychotics, during the consultation.

There are some important safety considerations. PDE5 inhibitors must never be taken with nitrate medications (such as GTN spray or isosorbide mononitrate), nicorandil, riociguat, or recreational drugs called 'poppers', as this combination can cause a dangerous drop in blood pressure. If you take alpha-blockers for prostate symptoms (such as tamsulosin or doxazosin), you'll need to start on the lowest dose of the ED tablet and be stable on the alpha-blocker first.

At Cured Pharmacy, every request for ED medication is reviewed by a UK-registered prescriber who will check your medical history and current medications, including risperidone, to ensure treatment is safe and appropriate. If approved, the medication is dispensed by our GPhC-registered pharmacy and delivered discreetly to your door.

Treatment Options for Risperidone Erectile Dysfunction at Cured Pharmacy

Cured Pharmacy offers a range of clinically proven erectile dysfunction treatments that may help if risperidone is affecting your erections. All treatments require an online consultation with a UK prescriber who will review your suitability, including your use of risperidone and any other medications. If appropriate, your chosen treatment is dispensed and delivered quickly and discreetly.

Sildenafil (generic Viagra) is available from £0.45 per tablet (£0.36 with first-order code Ednew) and is taken about one hour before sexual activity. Tadalafil (generic Cialis) starts at £7.95 (£6.36 with code Ednew) and can be taken on-demand or daily; the on-demand version works for up to 36 hours, offering greater spontaneity. Branded options include Viagra at £37.95 (£30.36 with code Ednew) and Cialis at £12.00 (£9.60 with code Ednew).

For men who prefer faster-acting options, Spedra (avanafil) works in as little as 15–30 minutes and costs £20.95 (£16.76 with code Ednew). Vardenafil (generic Levitra) is another alternative at £16.95 (£13.56 with code Ednew). All these medications require sexual stimulation to work and are taken as needed, not daily (except for the daily low-dose tadalafil option).

During your consultation, you'll be asked about your mental health condition, current medications including risperidone, cardiovascular health, and any other relevant medical history. This ensures the prescriber can make a safe, informed decision about which ED treatment, if any, is right for you. The process is confidential, and our team understands that discussing both mental health and sexual health can feel sensitive.

What to Expect From ED Treatment

PDE5 inhibitors like sildenafil and tadalafil are effective for many men experiencing erectile dysfunction caused by risperidone, though results vary. They work best when combined with addressing any underlying factors such as high prolactin levels. Some men find that ED tablets restore satisfactory erections even while continuing risperidone, while others may need additional adjustments to their antipsychotic regimen. It's important to have realistic expectations and to continue working with your healthcare team to optimise both your mental health and sexual wellbeing [1][2].

Scientific References

1. NHS. (n.d.). Erectile dysfunction (impotence). NHS website. https://www.nhs.uk/conditions/erection-problems-erectile-dysfunction/ [accessed 14 October 2026]
2. National Institute for Health and Care Excellence. (n.d.). Erectile dysfunction. Clinical Knowledge Summaries. https://cks.nice.org.uk/topics/erectile-dysfunction/ [accessed 14 October 2026]
3. Joint Formulary Committee. (n.d.). Sildenafil. British National Formulary. NICE. https://bnf.nice.org.uk/drugs/sildenafil/ [accessed 14 October 2026]
4. Joint Formulary Committee. (n.d.). Tadalafil. British National Formulary. NICE. https://bnf.nice.org.uk/drugs/tadalafil/ [accessed 14 October 2026]
5. Joint Formulary Committee. (n.d.). Vardenafil. British National Formulary. NICE. https://bnf.nice.org.uk/drugs/vardenafil/ [accessed 14 October 2026]
6. Joint Formulary Committee. (n.d.). Avanafil. British National Formulary. NICE. https://bnf.nice.org.uk/drugs/avanafil/ [accessed 14 October 2026]

Information on this page is for educational purposes only and is not medical advice. Prescription treatments require clinical assessment by a UK-registered prescriber. Always consult a qualified healthcare professional before starting or changing any medication.