Mesterolon tabletter
Pro-Viron
Granskad av Sid DajaniSenast uppdaterad av Michael Stewart, MRPharmSSenast uppdaterad 21 Nov 2022
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Klinisk författares anmärkning Michael Stewart 21/11/2019: Pro-Viron® tablets were discontinued in the UK in September 2018. At the time of review there are no branded or generic products containing mesterolone available in the UK. Mesterolone may still be available in other countries. This medicine leaflet is based on medical information available in the UK at the time of writing and is left here for reference purposes. Please also refer to the manufacturer's information supplied with your medicine.
Mesterolone tablets are prescribed for men.
They work by supplementing your body's natural male sex hormones.
Side-effects of treatment are similar to the masculinisation effect of natural male hormones.
Överblick
Mesterolone is a male sex hormone medicine used to treat low natural androgen levels.
It can also be used for certain types of male infertility.
Take tablets exactly as prescribed, with water, and you can take them with or without food.
Your doctor will monitor you with regular blood tests and examinations during treatment.
Side-effects can include headache, nausea, acne, and mood changes.
Let your doctor know if you experience frequent or long-lasting erections.
About mesterolone
Typ av medicin | An androgen (a male sex hormone) |
Används för | Androgen deficiency, and infertility due to low natural hormone levels |
Även kallad | Pro-Viron® |
Tillgänglig som | Tabletter |
Mesterolone belongs to the group of medicines known as androgens, which are male sex hormones. It is used to treat disorders in men where the body does not make enough natural androgen. It works by supplementing the amount of male hormone your body produces naturally.
Before taking mesterolone
Some medicines are not suitable for people with certain conditions, and sometimes a medicine may only be used if extra care is taken. For these reasons, before you start taking mesterolone it is important that your doctor knows:
Om du har lever- eller njurproblem.
If you have heart problems or high blood pressure (hypertension).
If you have epilepsy or migraine.
Om du har diabetes.
If you have cancer.
Om du tar eller använder några andra läkemedel. Detta inkluderar alla läkemedel du tar som finns att köpa utan recept, samt växtbaserade och komplementära läkemedel.
Om du någonsin har haft en allergisk reaktion mot en medicin.
How to take mesterolone
Before you start this treatment, read the manufacturer's printed information leaflet from inside your pack. The leaflet will give you more information about mesterolone tablets.
Take the tablets exactly as your doctor has told you to. To begin with, it is usual to be prescribed 25 mg (one tablet), to be taken three or four times a day. If you need to continue taking the tablets for more than a few months, your doctor may reduce the number of tablets you need to take each day. Your doctor will tell you what dose is right for you and this will also be printed on the label of the pack to remind you.
Swallow the tablet whole with a drink of water. You can take mesterolone before or after meals.
Försök att ta dina doser vid samma tid varje dag, eftersom det hjälper dig att komma ihåg att ta dem.
If you forget to take a dose, you should take it when you remember. However, if when you remember, it is nearly time for your next dose then leave out the forgotten dose. Do not take two doses at the same time to make up for a missed dose.
Få ut det mesta av din behandling
Try to keep your regular appointments with your doctor so your progress can be monitored. While you are on mesterolone your doctor will want you to have regular blood tests and examinations of your prostate and breasts. This is because the treatment may increase the rate of growth of some types of cancer and your doctor will want to rule these out. Your doctor will explain this to you before you start taking mesterolone, but if you have any concerns during your treatment, make an appointment to speak with your doctor again.
It is unlikely that mesterolone tablets will interact with any medicines you may buy, but it is always wise to check this with a pharmacist first.
The tablets are for you. Never give them to other people, even if their condition appears to be the same as yours. The tablets are not suitable for increasing muscle strength and bodybuilding in healthy men and should not be taken for this reason.
Can mesterolone cause problems?
Along with their useful effects, all medicines can cause unwanted side-effects although not everyone experiences them. The table below lists some of the most common ones associated with mesterolone. You will find a full list in the manufacturer's information leaflet supplied with your medicine. The unwanted effects often improve over the first few days of taking a new medicine, but speak with your doctor or pharmacist if any of the following side-effects continue or become troublesome.
Possible mesterolone side-effects | Vad kan jag göra om jag upplever detta? |
Headache and other aches and pains | Drink plenty of water and ask your pharmacist to recommend a suitable painkiller. If the pain does not ease, speak with your doctor |
Feeling sick (nausea), tummy (abdominal) pain | Stick to simple foods - avoid rich or spicy meals. If the pain does not ease quickly, speak with your doctor straightaway |
Acne, swollen hands or feet, raised blood pressure, increased body hair, breast or prostate problems, increased weight, baldness, mood changes | If any of these become troublesome, let your doctor know |
Viktigt: if you experience frequent erections or erections that last for a long time, you must let your doctor know about this. Your treatment will need to be reviewed in order to prevent any injury.
Om du upplever några andra symtom som du tror kan bero på denna medicin, tala med din läkare eller apotekare.
How to store mesterolone
Förvara alla läkemedel utom räckhåll och synhåll för barn.
Förvara på en sval, torr plats, borta från direkt värme och ljus.
Viktig information om alla läkemedel
Viktig information om alla läkemedel
Never take more than the prescribed dose. If you suspect that you or someone else might have taken an overdose of this medicine go to the accident and emergency department of your local hospital at once. Take the container with you, even if it is empty.
If you are having an operation or dental treatment tell the person carrying out the treatment which medicines you are taking.
Behåll inte föråldrade eller oönskade mediciner. Ta dem till ditt lokala apotek som kommer att ta hand om dem åt dig.
Om du har några frågor om denna medicin, fråga din apotekare.
Rapportera biverkningar av ett läkemedel eller vaccin
Om du upplever biverkningar kan du rapportera dem online via Yellow Card webbplats.

Osäker på att blanda mediciner?
Kontrollera möjliga interaktioner mellan läkemedel, kosttillskott och livsmedel innan du tar dem tillsammans.
Vanliga frågor
Does mesterolone commonly affect blood pressure?
Mesterolone can sometimes cause a rise in blood pressure. If this becomes a concern or troublesome, you should inform your doctor. Your doctor will also want to know if you have high blood pressure (hypertension) before you start taking mesterolone.
Can mesterolone be used by healthy men to build muscle or for bodybuilding?
No, mesterolone tablets are not suitable for increasing muscle strength and bodybuilding in healthy men and should not be taken for this reason. It is specifically used to treat disorders in men where the body does not make enough natural androgen.
What kind of monitoring will my doctor do while I'm taking mesterolone?
While you are on mesterolone, your doctor will ask you to attend regular appointments for blood tests and examinations of your prostate and breasts. This monitoring is important because the treatment may increase the growth rate of some types of cancer, and your doctor will want to check for this.
What should I do if I experience frequent or prolonged erections while on mesterolone?
If you experience frequent erections or erections that last for a long time, it is important to inform your doctor immediately. Your treatment will need to be reviewed to prevent any potential injury caused by these effects.
Can I take mesterolone at any time of day?
You can take mesterolone before or after meals. The most important thing is to try and take your doses at the same times each day, as this helps you to remember them and ensures consistent treatment.
Is it safe to store mesterolone in my bathroom cabinet?
Mesterolone should be stored in a cool, dry place, away from direct heat and light. Ensure all medicines are kept out of the reach and sight of children.
Vidare läsning och referenser
- Mediciner Komplett BNF 89:e Utgåvan; Brittiska Läkarföreningen och Kungliga Farmaceutiska Sällskapet i Storbritannien, London.
Om författarenVisa fullständig biografi

Michael Stewart, MRPharmS
Ansvarig för granskning av medicinbroschyrer – Konsult, Apotekare
BPharm (Hons), MRPharmS
Michael är en apotekare som arbetar i Midlands och South Yorkshire med mer än 20 års erfarenhet av att ge råd om läkemedel och medicinska tillstånd. Han har en stark bakgrund inom vårdutbildning och har producerat och levererat utbildningskurser för apoteksteam och personal inom vårdboenden, inklusive sjuksköterskor. Han har också bidragit till apoteksrådgivande styrelser för hantering av mindre allvarliga tillstånd i samhället.
Om recensenten

Sid Dajani
Sultan Dajani tog examen vid London School of Pharmacy 1994 och blev den yngsta valda medlemmen i Royal Pharmaceutical Society-rådet sedan dess grundande 1842.
Artikelhistorik
Informationen på denna sida är skriven och granskad av kvalificerade kliniker.
Artikeln finns också på Engelska, Tyska, Spanska, Franska, Italienska, Portugisiska, Hindi, Hebreiska, Arabiska, och Svenska.
Next review due: 20 May 2027
21 Nov 2022 | Senaste versionen

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