No morning erections after finasteride: PFS?
The UK leaflet warns finasteride erection problems can last after stopping. If your morning erections don't return, that can fit post-finasteride syndrome.
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Finasteride can cause erection problems, and some men say their morning erections stopped. If yours haven’t come back since you stopped, especially with low desire or less feeling in your penis, that fits a warning in the UK leaflet: erection problems can last. Patients call this post-finasteride syndrome (PFS).
PFS is more than an erection problem. In 2022, doctors and researchers proposed a checklist to recognise it: a lasting drop in sex drive, erection problems, and less feeling in the genitals and at orgasm. Problems with concentration and memory, depression and suicidal thoughts can come with these, or on their own. If you’re struggling, Samaritans are free on 116 123, day or night.
Morning erections can feel like a home test. They happen while you sleep, so it feels as if worry can’t be to blame. They’re a real clue, but a rough one. The few studies looked mostly at older men.
The story in 3 lines
- The UK Propecia leaflet lists “persistent difficulty having an erection after discontinuation of treatment”.
- Neither that leaflet nor the 2022 PFS checklist mentions morning erections.
- One clinic study in Italy found that men with sex problems on finasteride-type drugs were more likely to notice fewer sleep erections. Nobody has counted how often PFS happens.
Press: contact@sidefxhub.com
Carlos started finasteride for thinning hair in February 2021. He was told sexual side effects were unlikely, and temporary. Almost two years later, he kissed someone he liked and felt nothing, “neither my brain or my genitals”. He stopped the tablets three days later. In this extract, he explains why he never believed it was in his head.
Specialists told him it was psychological, and that everything would come back. He’d lost his night-time and morning erections, and to him that settled it. “When you lose that, that’s not psychological, because you are sleeping,” he says. About 15 months after his last tablet, he was still dealing with it.
Does finasteride stop morning erections?
Some men say it does. The UK leaflet says erection problems are uncommon, affecting up to 1 in 100 people. Our article on finasteride’s sexual side effects covers what the trials found.
Two studies looked at erections in sleep, and they point different ways. In a large clinic study in Florence, men seeing doctors about sex problems described their symptoms. Those on finasteride or a similar drug more often said they’d noticed fewer sleep erections, and less desire. On average, they were in their sixties.
A small sleep-lab trial from 1995 measured healthy middle-aged men’s erections overnight. For three months they took a dummy tablet or the stronger finasteride tablet used for an enlarged prostate. Finasteride didn’t consistently reduce their sleep erections.
We found no study that followed morning erections in young men before, during and after the 1 mg hair-loss tablet (searched October 2026).
Will they come back after stopping finasteride?
The NHS says finasteride’s side effects “usually improve after a while, but they can sometimes carry on even after you stop taking finasteride”.
The tablet doesn’t hang around. Finasteride leaves your blood within days of the last dose. So when a problem lasts for months, the drug has long gone.
That’s what the leaflet warns about: “persistent difficulty having an erection after discontinuation of treatment”. It gives no figure for how often. For some people it has lasted years after stopping. Nobody knows yet who will be affected, or whether it will ease.
Finasteride after the last tablet
Does no morning wood mean it isn’t in my head?
It points that way, but it isn’t proof. For decades, doctors have used erections in sleep to help tell whether erection problems come from the body or the mind. The NHS says that, depending on the cause, you may still get an erection “when you wake up”.
Depression can weaken sleep erections too, as our article on antidepressants and morning erections explains. And the finasteride leaflet lists depression as a possible side effect. So look at the timing. Did your morning erections change after you started? Have they stayed away since you stopped?
Dr Michael Irwig, a US hormone specialist who studied men with lasting side effects, said in 2012 that many had been told it was all in their head. Watch the extract if you’ve been told the same.
What can I do?
These medicines help many people. If you have side effects, that’s a decision for you and your prescriber. If your mood changes, the leaflet says to stop taking it and contact your doctor as soon as possible.
Write down your dates and what changed: “Finasteride 1 mg from March 2022, last tablet June 2024. No morning erections since May 2024. Touch feels numb.” Add changes beyond sex, such as low mood or trouble concentrating, and how things were before.
Three questions for your GP
- Could this be a lasting effect of finasteride, as the leaflet describes?
- What else should we rule out, and how?
- Can this go on my record and be reported as a side effect through the Yellow Card scheme?
You could start with: "My morning erections went while I was on finasteride, and they haven't come back since I stopped. The leaflet lists erection problems that carry on after stopping."
Many people say it took time to be taken seriously. Bring the leaflet line. You can report it without a doctor agreeing.
Report it: it helps everyone
A doctor’s note helps you. A report to the medicines regulator helps everyone else: it is how patterns get noticed.
- No proof needed. A suspicion is enough, even years after stopping.
- Where: the Yellow Card scheme in the UK, MedWatch in the US. Our Yellow Card guide for finasteride shows each step.
- Use the right words. If symptoms continued after stopping, write Post 5-alpha-reductase inhibitor syndrome (MedDRA 10082430).
Our reporting guide walks you through it
What else do people ask?
Is it PFS if only my morning erections have gone? The checklist doesn’t name them. It asks about desire, erections when you want one, and feeling in the genitals and at orgasm. To count towards PFS, the problems must still be there three months after stopping, with nothing else to explain them. Our guide to the PFS checklist goes through each part.
Could it be low testosterone? Finasteride works by lowering a related hormone, DHT. A Harvard study found normal testosterone and DHT in men with lasting symptoms after finasteride. Our article on finasteride and testosterone explains what a normal result can and can’t rule out.
I’m still taking finasteride. What should I do? Tell your prescriber. The UK leaflet says that if you notice problems with sexual function, you should contact your doctor, who may consider stopping the treatment. Note the date you first noticed.
Carlos pointed to what had changed while he slept. If your morning erections went with finasteride and haven’t come back, write down your dates today and report it. Our PFS page explains the condition.
Sources
- Organon Pharma (UK) Limited. Propecia 1 mg film-coated tablets, patient information leaflet, electronic Medicines Compendium (EMC 2194), last revised May 2026. Section 2, mood: if mood changes, “stop taking Propecia and contact your doctor for further medical advice as soon as possible”. Section 2, sexual function: “contact your doctor … Your doctor may consider stopping the treatment”. Section 4, uncommon (may affect up to 1 in 100 people): “you may be unable to have an erection (impotence)”. Section 4, frequency unknown: “persistent difficulty having an erection after discontinuation of treatment”. The leaflet does not mention morning, night-time or sleep erections.
- Propecia 1 mg, summary of product characteristics, EMC, text revised 29 June 2026. Section 5.2: mean terminal half-life about 5 to 6 hours in men aged 18 to 60. Section 4.8: reports of sexual dysfunction persisting after stopping.
- Healy D, Bahrick A, Bak M and colleagues. Diagnostic criteria for enduring sexual dysfunction after treatment with antidepressants, finasteride and isotretinoin. Int J Risk Saf Med 2022;33(1):65-76. Proposed criteria from an expert group, not an official diagnosis. Section 5 (PFS) lists lasting loss of desire, erectile dysfunction, and “reduction in genital and orgasmic sensation”. It adds: “The problem is present for ≥3 months after stopping treatment”. No other condition or medicine should account for it. “Sexual dysfunction that happens on finasteride but clears after treatment stops is not PFS.” Cognitive impairment, depression and suicidality “can occur independently of any sexual difficulties”. Section 5 does not mention nocturnal or morning erections; the PSSD section lists them as an ancillary sign. “The incidence of these conditions is unknown.”
- Corona G, Rastrelli G, Maseroli E and colleagues. Inhibitors of 5α-reductase-related side effects in patients seeking medical care for sexual dysfunction. J Endocrinol Invest 2012;35(10):915-20. 3,837 men at a sexual medicine clinic in Florence, mean age 63.5, records reviewed. Use of 5-alpha reductase inhibitors (the class of finasteride and dutasteride; the abstract names neither drug nor dose) went with low desire and fewer perceived sleep-related erections. It was not linked to erectile dysfunction. Read as the abstract only.
- Cunningham GR, Hirshkowitz M. Inhibition of steroid 5 alpha-reductase with finasteride: sleep-related erections, potency, and libido in healthy men. J Clin Endocrinol Metab 1995;80(6):1934-40. Randomised and double-blind: 20 men aged 41 to 64 took finasteride 5 mg or placebo for 12 weeks. Finasteride “did not consistently suppress sleep-related erections compared to” placebo. Read as the abstract only.
- Our search: PubMed, 27 October 2026, for finasteride, dutasteride or 5-alpha reductase inhibitors with nocturnal, morning or sleep-related erections. No study followed morning erections in young men before, during and after 1 mg finasteride. Nearest after stopping: Stachelek J and colleagues, Int Urol Nephrol 2025;57(8):2387-94, three men with post-drug syndrome (mixed medicines) whose nocturnal erections were tracked during a treatment study (abstract only). A 2026 Japanese study of dutasteride and sleep erections (Matsuki M and colleagues, Int J Urol 2026;33(1):e70291) has no abstract on PubMed and could not be opened.
- NHS, Side effects of finasteride, page last reviewed 2 August 2023.
- NHS, Erectile dysfunction (impotence), page last reviewed 28 July 2023. “Depending on the cause, you may still be able to get an erection at other times, such as when you wake up.” Depression and hormone problems are among the causes listed.
- Qin F, Gao L, Qian S and colleagues. Advantages and limitations of sleep-related erection and rigidity monitoring: a review. Int J Impot Res 2018;30(4):192-201. Sleep erection monitoring “has been used to differentiate psychogenic from organic erectile dysfunction”. Read as the abstract only.
- Thase ME, Reynolds CF 3rd, Jennings JR and colleagues. Diminished nocturnal penile tumescence in depression: a replication study. Biol Psychiatry 1992;31(11):1136-42. 51 men with major depression had weaker sleep erections. Read as the abstract only.
- Basaria S, Jasuja R, Huang G and colleagues. Characteristics of men who report persistent sexual symptoms after finasteride use for hair loss. J Clin Endocrinol Metab 2016;101(12):4669-80. Harvard Medical School and Brigham and Women’s Hospital, Boston. Testosterone and dihydrotestosterone “did not differ among groups”. Read as the abstract only.
- Moral Medicine, “This is survival. You feel dead inside…” Carlos’s Life with Post Finasteride Syndrome, 25 March 2024 (35 minutes), embedded here as an extract from 19:10 to 20:27. From the YouTube auto-captions: started in February 2021 (4:12). Told side effects were a small chance and “all temporary” (5:33 to 5:44). The night in December 2022 (14:29 to 15:35). Stopped three days later (16:18). Off it “about a year and three months” when filmed (18:57). Still dealing with it (19:10). Told it was psychological and would come back (19:34 to 19:44). Lost “nocturnal and morning” erections: “that’s not psychological because you are sleeping” (19:59 to 20:09). His story on our site: Carlos’s struggle with PFS.
- PFS Foundation, Persistent sexual side effects of finasteride (Propecia) for male pattern hair loss, interview with Dr Michael Irwig, 27 August 2012 (4 minutes), embedded here as an extract from 1:48 to 2:15. Paraphrased from the YouTube auto-captions: many patients were told “it’s all in your head” (2:04 to 2:07).
- Photo: Propecia box and tablet, Kristoferb, 2010, public domain, via Wikimedia Commons.
Sources checked on 27 October 2026. AI-assisted writing and review, not clinical review.
This information does not replace medical advice. Talk to your doctor before you make any decision about your treatment.
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Finasteride: what the official texts say, country by country
For the 5α-reductase inhibitor finasteride (Propecia), the product information we read in the United Kingdom, in the United States, in Canada, in Australia, in New Zealand, in Germany, in France, in Italy, in Spain, in Brazil and in India, in some places that of another product, lists sexual dysfunction that continued after treatment was stopped. In each of those texts it stands among side effects reported once the medicine was in general use. Several add that these reports come from a group of unknown size, so how often this happens, and whether finasteride is the cause, cannot always be established. Patients call lasting effects after finasteride post-finasteride syndrome (PFS). The wording a European Commission decision set for the EU in 2025 is about mood and thoughts of suicide, and has no sentence about sexual side effects continuing after the medicine is stopped.
This is a record of what each text says and of the date it prints. A text is quoted in its own words, or summarised where the row says so. It is not a comparison of countries. All medicines and countries
Finasteride: the official texts, country by country (85 texts read)
| Country or region | What the text says | Document | Dates |
|---|---|---|---|
| United Kingdom | Sexual side effects, as listed4.8 Undesirable effects · Psychiatric disorders: · Uncommon*: Sexual side effects, as listed4.8 Undesirable effects · Reproductive system and breast disorders: · Uncommon*: Sexual side effects that continue after stopping4.8 Undesirable effects The same text also says4.8 Undesirable effects Sexual side effects, as listed4.8 Undesirable effects Sexual side effects, as listed4.8 Undesirable effects This text also has a warning about changes in mood that names sexual dysfunction as something that may contribute to them. That warning says nothing about sexual side effects continuing after stopping. It is not reproduced here, because this record shows the sexual side effects a text lists and whether it says they continue after stopping. The document link in this row opens the text. Texts for other products in this country do not all say the same. The ones we read are on the full record. | Text for professionals Summary of Product Characteristics (SmPC): Propecia 1 mg Film-Coated TabletsPropecia 1 mg film-coated tablets, Organon Pharma (UK) Limited · Read in a compendium of product information: emcAlso on record: 1 more text for professionals, with such a sentence; 2 patients' leaflets, with such a sentence; 5 related documents, with such a sentence; 5 related documents, with no such sentence | Text revisedChecked |
| European Union | This text has no sentence about sexual side effects continuing after the medicine is stopped. This text also has a warning about changes in mood that names sexual dysfunction as something that may contribute to them. That warning says nothing about sexual side effects continuing after stopping. It is not reproduced here, because this record shows the sexual side effects a text lists and whether it says they continue after stopping. The document link in this row opens the text. This is wording for national product texts. There is no single EU product text for this medicine. | Document from the regulator Finasteride- and dutasteride-containing medicinal products, Article 31 referral: Annex III Amendments to relevant sections of the Product InformationRead on the regulator's site: European Medicines AgencyAlso on record: 2 more related documents, with no such sentence | The text prints no dateChecked |
| United States | Sexual side effects that continue after stopping6 ADVERSE REACTIONS · 6.2 Postmarketing Experience The same text also says6 ADVERSE REACTIONS · 6.2 Postmarketing Experience This sentence stands in the list of adverse reactions. The warnings section of this text has no entry on sexual function. Texts for other products in this country do not all say the same. The ones we read are on the full record. This text names sexual side effects in several places that this row does not show. Together those passages are too long to reproduce here. The document link in this row opens the text. That they are not shown says nothing about how common these side effects are. On 14 October 2026 we searched the labels in openFDA, the FDA's open database. A sentence that sexual dysfunction continued after treatment was stopped stood on 151 of the 181 labels in that database that name finasteride, and on each of them among the adverse reactions, in no warnings section. Of the 30 without it, 10 are hair products with labels in the Drug Facts style, 5 are listings of compounded solutions for the skin, 2 have no text on adverse reactions, and 13 are older labels of 5 mg tablets with an earlier list of adverse reactions. A table cell or list line is shown whole, as the text prints it. Some of them also name side effects that are not sexual. | Text for professionals PROPECIA® (finasteride) tablets for oral use: Full Prescribing InformationPropecia tablets 1 mg, Organon LLC · Read in the government's medicines database: DailyMedAlso on record: 1 more text for professionals, with such a sentence; 2 patients' leaflets, with such a sentence; 2 related documents, with such a sentence; 3 related documents, with no such sentence | Text revisedChecked |
| Canada | Sexual side effects that continue after stopping8 ADVERSE REACTIONS · 8.5 Post-Market Adverse Reactions Sexual side effects that continue after stopping8 ADVERSE REACTIONS · 8.5 Post-Market Adverse Reactions The same text also says8 ADVERSE REACTIONS · 8.5 Post-Market Adverse Reactions This sentence stands in the list of adverse reactions. The warnings section of this text has no entry on sexual function. Texts for other products in this country do not all say the same. The ones we read are on the full record. This text names sexual side effects in several places that this row does not show. Together those passages are too long to reproduce here. The document link in this row opens the text. That they are not shown says nothing about how common these side effects are. A table cell or list line is shown whole, as the text prints it. Some of them also name side effects that are not sexual. | Text for professionals PRODUCT MONOGRAPH INCLUDING PATIENT MEDICATION INFORMATION: PrPROPECIA® finasteride tablets, Film-coated Tablets 1 mg, USPPropecia film-coated tablets 1 mg, Organon Canada Inc. · Read in the regulator's own database: Drug Product DatabaseAlso on record: 1 more text for professionals, with such a sentence; 2 patients' leaflets, with such a sentence; 2 related documents, with no such sentence | Text revisedChecked |
| Australia | Sexual side effects that continue after stoppingSection 4.8 · Post-marketing experienceIn section 4.8, under post-marketing experience, Australia's product information for Propecia lists a lower sex drive, and sexual dysfunction (erection and ejaculation problems), each as having gone on after the treatment was stopped.Summarised, not quoted, because of the TGA's access terms. The same text also saysSection 4.8 · Post-marketing experienceThe text says these reports come from a group of unknown size, so how often this happens, and whether the medicine is the cause, cannot always be established.Summarised, not quoted, because of the TGA's access terms. The regulator's site asks readers to accept its terms before it shows this text. This text also has a warning about changes in mood that names sexual dysfunction as something that may contribute to them. That warning says nothing about sexual side effects continuing after stopping. It is not reproduced here, because this record shows the sexual side effects a text lists and whether it says they continue after stopping. The document link in this row opens the text. Texts for other products in this country do not all say the same. The ones we read are on the full record. | Text for professionals AUSTRALIAN PRODUCT INFORMATION PROPECIA (finasteride) TabletsPROPECIA, Organon Pharma Pty Ltd · Read in the regulator's own database: TGA eBSAlso on record: 1 more text for professionals, with such a sentence; 2 patients' leaflets, with such a sentence | Text revisedChecked |
| New Zealand | Sexual side effects, as listed4.8 Undesirable effects · Adverse events identified during clinical trials The same text also says4.8 Undesirable effects · Adverse events identified during clinical trials Sexual side effects that continue after stopping4.8 Undesirable effects · Adverse events identified during postmarketing experience · Psychiatric disorders: Sexual side effects that continue after stopping4.8 Undesirable effects · Adverse events identified during postmarketing experience · Reproductive system and breast disorders: The same text also says4.8 Undesirable effects · Adverse events identified during postmarketing experience This sentence stands in the list of adverse reactions. The warnings section of this text has no entry on sexual function. Texts for other products in this country do not all say the same. The ones we read are on the full record. | Text for professionals New Zealand Data Sheet, PROPECIAPropecia 1 mg film coated tablet, Organon (New Zealand) Limited · Read in the regulator's own database: MedsafeAlso on record: 1 more text for professionals, with such a sentence; patients' leaflet, with such a sentence; related document, with such a sentence | Text revisedChecked |
| Germany | Sexual side effects, as listed4.8 Nebenwirkungen · Psychiatrische Erkrankungen: · Gelegentlich* Sexual side effects, as listed4.8 Nebenwirkungen · Erkrankungen der Geschlechtsorgane und der Brustdrüse: · Gelegentlich* Sexual side effects that continue after stopping4.8 Nebenwirkungen The same text also says4.8 Nebenwirkungen Sexual side effects, as listed4.8 Nebenwirkungen This is the holder's own copy. The regulator's database asks visitors to accept its terms first, which we did not do. This text also has a warning about changes in mood that names sexual dysfunction as something that may contribute to them. That warning says nothing about sexual side effects continuing after stopping. It is not reproduced here, because this record shows the sexual side effects a text lists and whether it says they continue after stopping. The document link in this row opens the text. Texts for other products in this country do not all say the same. The ones we read are on the full record. | Text for professionals Fachinformation (Zusammenfassung der Merkmale des Arzneimittels)Propecia® 1 mg Filmtabletten, Organon Healthcare GmbH · Read on the holder's own site: Organon Healthcare GmbHAlso on record: 1 more text for professionals, with such a sentence; 2 patients' leaflets, with such a sentence; patients' leaflet, with no such sentence; 2 related documents, with such a sentence; related document, with no such sentence | Text revisedChecked |
| France | Sexual side effects, as listed4.8. Effets indésirables · Affections psychiatriques · Peu fréquent* Sexual side effects, as listed4.8. Effets indésirables · Affections des organes de reproduction et du sein · Peu fréquent* Sexual side effects that continue after stopping4.8. Effets indésirables The same text also says4.8. Effets indésirables Sexual side effects, as listed4.8. Effets indésirables The text itself prints no date of revision. An official list of medicines we read shows the originator product as cancelled, revoked or archived. This is the text of another product, the one named in this row. This text also has a warning about changes in mood that names sexual dysfunction as something that may contribute to them. That warning says nothing about sexual side effects continuing after stopping. It is not reproduced here, because this record shows the sexual side effects a text lists and whether it says they continue after stopping. The document link in this row opens the text. Texts for other products in this country do not all say the same. The ones we read are on the full record. | Text for professionals Résumé des Caractéristiques du ProduitFINASTERIDE ARROW LAB 1 mg, comprimé pelliculé, ARROW GENERIQUES · Read in the government's medicines database: Base de données publique des médicamentsAlso on record: 1 more text for professionals, with such a sentence; 2 patients' leaflets, with such a sentence; patients' leaflet, with no such sentence; 9 related documents, with such a sentence; 3 related documents, with no such sentence | Updated by the regulatorChecked |
| Italy | Sexual side effects, as listed4.8 Effetti indesiderati · Disturbi psichiatrici: · Non comune* Sexual side effects, as listed4.8 Effetti indesiderati · Patologie dell’apparato riproduttivo e della mammella: · Non comune* The same text also says4.8 Effetti indesiderati Sexual side effects that continue after stopping4.8 Effetti indesiderati Sexual side effects, as listed4.8 Effetti indesiderati The text itself prints no date of revision. This text also has a warning about changes in mood that names sexual dysfunction as something that may contribute to them. That warning says nothing about sexual side effects continuing after stopping. It is not reproduced here, because this record shows the sexual side effects a text lists and whether it says they continue after stopping. The document link in this row opens the text. Texts for other products in this country do not all say the same. The ones we read are on the full record. | Text for professionals Riassunto delle caratteristiche del prodottoPropecia 1 mg compresse rivestite con film, Organon Italia S.r.l. · Read in the regulator's own database: Banca Dati FarmaciAlso on record: 1 more text for professionals, with such a sentence; 2 patients' leaflets, with such a sentence; 2 related documents, with such a sentence; 2 related documents, with no such sentence | Made available by the regulatorChecked |
| Spain | Sexual side effects, as listed4.8. Reacciones adversas · Trastornos psiquiátricos: · Poco frecuentes* Sexual side effects, as listed4.8. Reacciones adversas · Trastornos del aparato reproductor y de la mama: · Poco frecuentes* The same text also says4.8 Reacciones adversas Sexual side effects that continue after stopping4.8. Reacciones adversas Sexual side effects, as listed4.8. Reacciones adversas This text also has a warning about changes in mood that names sexual dysfunction as something that may contribute to them. That warning says nothing about sexual side effects continuing after stopping. It is not reproduced here, because this record shows the sexual side effects a text lists and whether it says they continue after stopping. The document link in this row opens the text. Texts for other products in this country do not all say the same. The ones we read are on the full record. | Text for professionals Ficha técnicaPropecia 1 mg comprimidos recubiertos con película, Organon Salud, S.L. · Read in the regulator's own database: CIMAAlso on record: 1 more text for professionals, with such a sentence; 2 patients' leaflets, with such a sentence; patients' leaflet, with no such sentence; related document, with no such sentence | Text revisedChecked |
| Brazil | Sexual side effects, as listed8. QUAIS OS MALES QUE ESTE MEDICAMENTO PODE ME CAUSAR? · Reação comum (ocorre entre 1% e 10% dos pacientes que utilizam este medicamento): Sexual side effects, as listed8. QUAIS OS MALES QUE ESTE MEDICAMENTO PODE ME CAUSAR? · Reação incomum (ocorre entre 0,1% e 1% dos pacientes que utilizam este medicamento): The same text also says8. QUAIS OS MALES QUE ESTE MEDICAMENTO PODE ME CAUSAR? Sexual side effects that continue after stopping8. QUAIS OS MALES QUE ESTE MEDICAMENTO PODE ME CAUSAR? · Frequência desconhecida: durante a comercialização do medicamento, as seguintes reações foram relatadas voluntariamente, não sendo possível estimar o tamanho da população exposta: Sexual side effects that continue after stopping8. QUAIS OS MALES QUE ESTE MEDICAMENTO PODE ME CAUSAR? · Frequência desconhecida: durante a comercialização do medicamento, as seguintes reações foram relatadas voluntariamente, não sendo possível estimar o tamanho da população exposta: Sexual side effects that continue after stopping8. QUAIS OS MALES QUE ESTE MEDICAMENTO PODE ME CAUSAR? · Frequência desconhecida: durante a comercialização do medicamento, as seguintes reações foram relatadas voluntariamente, não sendo possível estimar o tamanho da população exposta: This is the holder's own copy. The regulator's database refused our requests (it blocks by country; we asked from Denmark). An official list of medicines we read shows the originator product as cancelled, revoked or archived. This is the text of another product, the one named in this row. Texts for other products in this country do not all say the same. The ones we read are on the full record. | Patient leaflet finasterida, EMS S/A, comprimido revestido 1 mg: bula para o pacienteFinasterida 1 mg comprimido revestido, EMS S/A · Read on the holder's own site: Sara – Plataforma Oficial de Bulas Digitais de Medicamentos do Grupo EMSAlso on record: 2 texts for professionals, could not be opened; 3 more patients' leaflets, with such a sentence; 2 more patients' leaflets, could not be opened | Text approvedChecked |
| India | Sexual side effects that continue after stoppingUndesirable Effects · Postmarketing Experience · Reproductive System: The same text also saysUndesirable Effects · Postmarketing Experience This is the holder's own copy. This regulator publishes no database of such texts. This sentence stands in the list of adverse reactions. The warnings section of this text has no entry on sexual function. Texts for other products in this country do not all say the same. The ones we read are on the full record. This text names sexual side effects in several places that this row does not show. Together those passages are too long to reproduce here. The document link in this row opens the text. That they are not shown says nothing about how common these side effects are. A table cell or list line is shown whole, as the text prints it. Some of them also name side effects that are not sexual. | Text for professionals FINPECIA TabletsFinpecia tablets (finasteride IP 1 mg, film-coated), Cipla Ltd. · Read on the holder's own site: Cipla (ciplamed.com)Also on record: 1 more text for professionals, with such a sentence | Text revisedChecked |
Brand names
These are the brand names of finasteride we saw in the official lists, compendia and regulators' pages we opened on or after 14 October 2026. A country may have more.
- Propecia
- United Kingdom, United States, Canada, New Zealand, Germany, Italy, Spain
- Proscar
- United Kingdom, United States, Canada, Germany, Italy, Spain
- Chibro-Proscar
- France
- Ricit
- New Zealand
- Prostide
- Italy
- Genaprost
- Italy
- Finastid
- Italy
- Asterid
- Italy
- Ridestin
- Italy
- Finestar
- Italy
- Fendazel
- Italy
- Stecur
- Italy
- Sitas
- Italy
- Finacapil
- Italy
- Ormicton
- Italy
- Carefinast
- Italy
- Finedor
- Italy
- Terip
- Italy
- Alocare
- Spain
- Litace
- Spain
- Maxpil
- Spain
- Excalv
- Brazil
- Finalop
- Brazil
- Finarid
- Brazil
- Finastil
- Brazil
- Prohair
- Brazil
What is not known
- How often PFS happens is unknown. The UK text for professionals says the frequency of the side effects reported after marketing, among them sexual dysfunction that persisted after treatment was stopped, “cannot be determined”, because they come from spontaneous reports. (source)
Code and reporting
In a report to a medicines regulator, the term is Post 5-alpha-reductase inhibitor syndrome (MedDRA code 10082430). Where to report, country by country
Every row in this table was checked on or after . To quote this record, name SIDEfxHUB and give this page's address. All medicines and countries · The whole record as a file: JSON · CSV · How these texts are checked
You may reuse this record under CC BY 4.0 if you credit SIDEfxHUB and give this page's address. The licence covers our compilation, not the texts quoted in it, in the original or in our translation, and not the article above.