Viagra 50

Tablet · Pfizer
PRESCRIPTION MEDICINE

Viagra 50 is a tablet made by Pfizer that contains Sildenafil 50 mg. Sildenafil is a pde-5 inhibitor: treats erectile dysfunction; also used for pulmonary hypertension.

Ingredient (salt)Amount
Sildenafil50 mg

What it is used for

Treats erectile dysfunction; also used for pulmonary hypertension.

How it works

A PDE-5 inhibitor that increases blood flow, used for erectile dysfunction and, at other doses, for lung blood pressure (pulmonary hypertension).

How to take it

For erections: 25 to 100 mg about 1 hour before sex, no more than once a day; works only with sexual stimulation. A heavy meal delays it.

Common side effects

  • Headache
  • Flushing
  • Stuffy nose
  • Indigestion
  • Bluish vision

Get medical help straight away if

  • Erection lasting more than 4 hours
  • Sudden loss of vision or hearing
  • Chest pain during sex

Be careful

Never take with nitrate heart medicines (dangerous drop in BP). Seek help for an erection lasting over 4 hours.

Other medicines and interactions

Never take with nitrates (isosorbide, glyceryl trinitrate, nicorandil) or riociguat; dangerous fall in blood pressure. Caution with alpha blockers. Ritonavir and some antifungals raise levels.

Pregnancy and breastfeeding

Not relevant for erectile use; used in pregnancy only for specific lung conditions under specialists.

Same composition, other brands (9)

Manforce 50Penegra 50Suhagra 50Caverta 50Vigore 50 RedMacsutra 50Eriacta 50Kamagra Gold 50Intagra 50

Ask your doctor or pharmacist before switching brands.

Same ingredients, different strength or form

Manforce 100

Common questions

What is Viagra 50?

Viagra 50 is a tablet by Pfizer containing Sildenafil 50 mg.

What is Viagra 50 used for?

Treats erectile dysfunction; also used for pulmonary hypertension.

How should I take Viagra 50?

For erections: 25 to 100 mg about 1 hour before sex, no more than once a day; works only with sexual stimulation. A heavy meal delays it. Always follow the dose your doctor or the pack gives.

What are the side effects of Viagra 50?

Common side effects include: Headache, flushing, stuffy nose, indigestion, bluish vision. Get medical help straight away for: Erection lasting more than 4 hours, sudden loss of vision or hearing, chest pain during sex.

Does Viagra 50 need a prescription?

Yes. In India it is a prescription (Schedule H) medicine, so a pharmacist should sell it only with a doctor's prescription.

Can I take Viagra 50 in pregnancy or while breastfeeding?

Not relevant for erectile use; used in pregnancy only for specific lung conditions under specialists.

What are the substitutes for Viagra 50?

Brands with the same composition: Manforce 50, Penegra 50, Suhagra 50, Caverta 50, Vigore 50 Red, Macsutra 50, Eriacta 50, Kamagra Gold 50, Intagra 50. Ask your doctor or pharmacist before switching.

Sources and further reading

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.

Composition checked against pack details from large Indian online pharmacies. Last reviewed 31 October 2026. Written by Satya Babu.

🔎 Search another medicine

For information only, not medical advice. This page is a plain-language summary written from standard prescribing information and the public guides linked below. Brands sometimes change their formula, so always check the composition printed on the pack. Doses here are typical adult doses; yours may differ. Do not start, stop or change a medicine without your doctor or pharmacist, and keep all medicines away from children. In an emergency, call 112 (India) or your local emergency number.