Silodosin
Silodosin is a prostate medicine (alpha blocker) found in 1 medicine sold in India, such as Silodal 8. Below: what it is for, how it works, how to take it, side effects, interactions and pregnancy advice.
What it is used for
Eases urine flow in an enlarged prostate.
How it works
A highly selective alpha blocker that relaxes the prostate to improve urine flow.
How to take it
Usually 8 mg once a day with food.
Common side effects
- No or little semen at ejaculation
- Dizziness
- Stuffy nose
Get medical help straight away if
- Fainting
- Painful erection over 4 hours
Be careful
Can reduce semen during ejaculation; dizziness on standing.
Other medicines and interactions
Tell your eye surgeon before cataract surgery. Ketoconazole and ritonavir raise levels.
Pregnancy and breastfeeding
Not used by women.
Brands of Silodosin (1)
Common questions
What is Silodosin used for?
Eases urine flow in an enlarged prostate.
How does Silodosin work?
A highly selective alpha blocker that relaxes the prostate to improve urine flow.
How should I take Silodosin?
Usually 8 mg once a day with food.
What are the side effects of Silodosin?
Common: No or little semen at ejaculation, dizziness, stuffy nose. Get help straight away for: Fainting, painful erection over 4 hours.
Does Silodosin interact with other medicines?
Tell your eye surgeon before cataract surgery. Ketoconazole and ritonavir raise levels.
Is Silodosin safe in pregnancy and breastfeeding?
Not used by women.
Does Silodosin need a prescription in India?
Yes. In India it is a prescription (Schedule H) medicine, so a pharmacist should sell it only with a doctor's prescription.
Which brands contain Silodosin?
Silodal 8.
Sources and further reading
- Silodosin: NHS · MedlinePlus
NHS (UK National Health Service) and MedlinePlus (US National Library of Medicine) are free, reviewed medicine guides. Brand names and doses there may differ from India.
Last reviewed 31 October 2026. Written by Satya Babu from standard prescribing information.
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