PSSD Post SSRI Sexual Dysfunction: Causes & Treatment

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What is PSSD post SSRI sexual dysfunction?

Post-SSRI sexual dysfunction (PSSD) refers to sexual difficulties that begin during treatment with an SSRI antidepressant—such as sertraline, fluoxetine, paroxetine, citalopram, or escitalopram—and continue after the medication has been stopped [1]. Common symptoms include reduced sexual desire, erectile dysfunction in men, difficulty achieving orgasm, reduced genital sensation, and less pleasurable orgasms. The condition is not yet fully understood, and the exact number of people affected is unclear, though it appears to be relatively uncommon.

SSRIs are widely prescribed for depression, anxiety, and other mental health conditions, and sexual side effects during treatment are well recognised, affecting a significant proportion of users [2]. For most people, these side effects improve or disappear within a few weeks of stopping the SSRI. However, in PSSD, the symptoms persist despite discontinuation of the medication, sometimes for many months or years. The underlying mechanism is not fully established, but theories include lasting changes in serotonin receptor sensitivity, alterations in dopamine or other neurotransmitter systems, or effects on nerve pathways involved in sexual response.

If you are experiencing persistent sexual problems after stopping an SSRI, it is important to speak to your GP. They can rule out other causes of sexual dysfunction—such as diabetes, cardiovascular disease, low testosterone, or psychological factors—and discuss your treatment history and symptoms in detail. A thorough assessment is essential, as many conditions can cause similar symptoms, and addressing any underlying health issues is a priority [1][2].

Causes and risk factors for post SSRI sexual dysfunction

The exact cause of PSSD post SSRI sexual dysfunction remains uncertain, and research is ongoing. SSRIs work by increasing serotonin levels in the brain, which can affect sexual function through several pathways. Serotonin can inhibit dopamine and nitric oxide, both of which play key roles in sexual arousal and erectile function. During SSRI treatment, these effects are usually reversible, but in some individuals, changes may persist after the drug is stopped. Possible explanations include long-lasting changes to serotonin receptors, epigenetic modifications, or alterations in the balance of neurotransmitters that regulate sexual desire and response.

Risk factors for developing PSSD are not well defined, but some patterns have been observed. Younger age at the time of starting an SSRI, longer duration of treatment, and higher doses may be associated with a greater risk, though evidence is limited. Certain SSRIs, particularly paroxetine and sertraline, have been more commonly reported in PSSD cases, but all SSRIs carry the potential for sexual side effects. It is also important to note that the underlying mental health condition itself—such as depression or anxiety—can independently affect sexual function, making it difficult to separate the effects of the illness from those of the medication [2].

Other factors that can contribute to or worsen sexual dysfunction include cardiovascular disease, diabetes, obesity, smoking, excessive alcohol use, low testosterone, thyroid disorders, and certain other medications (such as beta-blockers or antipsychotics). Psychological factors, including stress, relationship difficulties, and anxiety about sexual performance, can also play a significant role. A comprehensive assessment by a healthcare professional is essential to identify all contributing factors and tailor treatment accordingly [1][2].

When to see your GP

If you have stopped an SSRI and your sexual problems have not improved after several weeks, or if you are concerned about persistent symptoms, you should see your GP. Erectile dysfunction can be an early warning sign of cardiovascular disease or diabetes, so a medical review is important even if you suspect the cause is related to your previous antidepressant [1]. Your GP can perform blood tests (such as glucose, cholesterol, and testosterone levels), check your blood pressure, and review your medication history. They can also discuss whether switching to a different antidepressant or adjusting your mental health treatment might be appropriate if you are still taking an SSRI. Never stop or change a prescribed antidepressant without medical advice, as this can lead to withdrawal symptoms or a relapse of your mental health condition.

Treatment options for PSSD and post SSRI sexual dysfunction

There is currently no specific cure for PSSD post SSRI sexual dysfunction, and treatment is largely supportive and symptom-focused. For men experiencing erectile dysfunction as part of PSSD, PDE5 inhibitor medications—such as sildenafil (Viagra), tadalafil (Cialis), vardenafil (Levitra), and avanafil (Spedra)—may help improve erections by increasing blood flow to the penis during sexual stimulation [3][4][5][6]. These medicines do not address the underlying cause of PSSD, but they can be effective in managing the erectile component of the condition. They require sexual arousal to work and are taken before sexual activity.

Other approaches that may be considered include lifestyle changes (regular exercise, healthy diet, stopping smoking, reducing alcohol), psychological support (counselling or sex therapy), and addressing any other contributing health conditions. Some clinicians have tried other medications off-label, such as dopamine agonists or phosphodiesterase inhibitors, but evidence for these treatments in PSSD is limited and they are not routinely recommended. Testosterone replacement may be considered if blood tests show low testosterone levels, but this should only be prescribed by a specialist after thorough evaluation.

It is important to have realistic expectations. While some people with PSSD report gradual improvement over time, others experience persistent symptoms. Treatment is individualised, and what works for one person may not work for another. A multidisciplinary approach, involving your GP, a urologist or sexual health specialist, and a mental health professional if needed, is often the most effective way to manage PSSD. Open communication with your healthcare team about your symptoms, concerns, and treatment goals is essential [2].

What you need to know

• PSSD is sexual dysfunction that persists after stopping an SSRI antidepressant
• PDE5 inhibitors like sildenafil and tadalafil may help improve erectile function in PSSD
• See your GP for a full assessment to rule out other causes of sexual problems
• Lifestyle changes and psychological support can be valuable alongside medical treatment
• Online consultations at Cured Pharmacy offer discreet access to ED treatment after prescriber review

How PDE5 inhibitors can help with erectile dysfunction in PSSD

PDE5 inhibitors are the first-line treatment for erectile dysfunction in the UK and are licensed for this indication [2]. They work by blocking the enzyme phosphodiesterase type 5, which breaks down a substance called cyclic GMP. Cyclic GMP relaxes smooth muscle in the blood vessels of the penis, allowing increased blood flow and an erection in response to sexual stimulation. Sildenafil (Viagra) is usually taken about one hour before sex and lasts for around four to six hours [3]. Tadalafil (Cialis) can be taken on-demand (at least 30 minutes before sex, with effects lasting up to 36 hours) or as a lower daily dose [4]. Vardenafil (Levitra) and avanafil (Spedra) are alternatives with slightly different onset and duration profiles [5][6].

In the context of PSSD post SSRI sexual dysfunction, PDE5 inhibitors may help restore erectile function even if the underlying cause is related to changes in neurotransmitter systems rather than purely physical factors. Clinical experience suggests that some men with PSSD do respond to these medications, though the response may vary. It is worth noting that PDE5 inhibitors do not increase sexual desire or libido; they only facilitate the physical process of achieving an erection when sexual arousal is present. If reduced libido is the main symptom of your PSSD, these medicines may be less helpful, and other approaches (such as psychological support or addressing hormonal factors) may be more appropriate.

All PDE5 inhibitors are prescription-only medicines in the UK and require a clinical assessment by a prescriber. At Cured Pharmacy, you can complete an online consultation, which is reviewed by a UK-registered prescriber. If the treatment is suitable and safe for you, your medicine can be dispensed and delivered discreetly. It is important to declare all your current medications and health conditions during the consultation, as PDE5 inhibitors can interact with certain medicines (such as nitrates, alpha-blockers, and some antifungals or antivirals) and are not suitable for everyone [3][4][5][6].

Starting treatment safely

Before starting a PDE5 inhibitor, your prescriber will check your medical history, current medications, and any cardiovascular risk factors. You should never take a PDE5 inhibitor if you are using nitrates (such as GTN spray or isosorbide mononitrate), nicorandil, riociguat, or recreational drugs called 'poppers', as the combination can cause a dangerous drop in blood pressure. If you take an alpha-blocker for prostate symptoms or blood pressure, you may still be able to use a PDE5 inhibitor, but you will need to start on the lowest dose and your prescriber will assess your suitability carefully. Always follow the dosing instructions provided, and do not take more than one PDE5 inhibitor in a 24-hour period [3][4][5][6].

Managing PSSD post SSRI sexual dysfunction: practical steps

Living with PSSD post SSRI sexual dysfunction can be challenging, but there are practical steps you can take to manage your symptoms and improve your quality of life. First, maintain open communication with your GP and any specialists involved in your care. Keep a record of your symptoms, including when they started, how they have changed over time, and any treatments you have tried. This information can help your healthcare team tailor your treatment plan and monitor your progress.

Lifestyle factors play an important role in sexual health. Regular physical activity improves cardiovascular fitness, blood flow, and mood, all of which can support sexual function. Aim for at least 150 minutes of moderate-intensity exercise per week, such as brisk walking, cycling, or swimming. A balanced diet rich in fruits, vegetables, whole grains, and lean protein supports overall health and may help with erectile function. If you smoke, stopping is one of the most effective steps you can take, as smoking damages blood vessels and worsens erectile dysfunction. Limiting alcohol intake is also important, as heavy drinking can impair sexual performance and interact with ED medications [1][2].

Psychological support can be valuable, particularly if PSSD is affecting your self-esteem, relationships, or mental health. Cognitive behavioural therapy (CBT), sex therapy, or couples counselling can help you and your partner navigate the emotional and relational aspects of sexual dysfunction. Many people find it helpful to talk openly with their partner about their symptoms and treatment options, as this can reduce anxiety and strengthen intimacy. Remember that sexual health is an important part of overall wellbeing, and seeking help is a positive step [2].

Support and information

Several organisations and online communities provide information and support for people affected by PSSD. While it is important to seek advice from qualified healthcare professionals, connecting with others who have similar experiences can be reassuring. Always be cautious about unverified treatments or supplements promoted online, and discuss any new treatment with your GP or pharmacist before trying it. If you are struggling with the emotional impact of PSSD, your GP can refer you to local mental health services or counselling, and charities such as Mind and the Sexual Advice Association offer resources and support.

When to get urgent help

• Erection lasting more than 4 hours (priapism) – go to A&E immediately
• Sudden loss of vision or hearing after taking ED medication – seek urgent medical help
• Chest pain during or after sexual activity – call 999 or go to A&E
• Severe dizziness, fainting, or very low blood pressure after taking ED medication – seek urgent medical advice
• New or worsening mental health symptoms after stopping an SSRI – contact your GP or mental health team urgently

Call 999 or go to A&E in an emergency, or contact NHS 111 for urgent advice.

Cured Pharmacy: discreet, pharmacist-led care for erectile dysfunction

Cured Pharmacy is a GPhC-registered online pharmacy (GPhC 9012511) offering a convenient, confidential service for men experiencing erectile dysfunction, including those with PSSD post SSRI sexual dysfunction. Our online consultation is reviewed by a UK-registered prescriber, who will assess your suitability for treatment based on your medical history, current medications, and symptoms. If a PDE5 inhibitor is appropriate for you, we can dispense and deliver your medication discreetly to your door.

We stock a range of ED treatments to suit different needs and budgets. Sildenafil (generic Viagra) is available from £0.45 per tablet (£0.36 with first-order code Ednew), and tadalafil (generic Cialis) from £7.95 (£6.36 with code Ednew). We also offer branded options, including Viagra at £37.95 (£30.36 with code Ednew) and Cialis at £12.00 (£9.60 with code Ednew), as well as alternatives such as vardenafil (generic Levitra) at £16.95 (£13.56 with code Ednew) and Spedra (avanafil) at £20.95 (£16.76 with code Ednew). All prices include the prescriber review and delivery.

Our pharmacist-led approach means you can ask questions, discuss your treatment options, and receive ongoing support. We understand that talking about sexual health can feel difficult, and our service is designed to be non-judgemental, professional, and respectful. If you have concerns about PSSD or persistent sexual problems after stopping an SSRI, we encourage you to see your GP for a full assessment. If ED treatment is appropriate, Cured Pharmacy is here to provide safe, effective, and affordable care.