SILDENAFIL 50mg/100mg & 200mg


Sildenafil 100mg It relaxes muscles at the walls of blood vessels. Its used to treat erectile dysfunction & pulmonary arterial hypertension.

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Sildenafil 100mg

Sildenafil, sold under the brand name Viagra among others, is a medication used to treat erectile dysfunction and pulmonary arterial hypertension. It is unclear if it is effective for treating sexual dysfunction in women. Sildenafil 100mg is taken by mouth or by injection into veins about 20 minutes before having sex and last for about 2 hours.

Sildenafil is a medicine used to treat erection problems (erectile dysfunction).

Sildenafil is also sometimes used to treat pulmonary hypertension (high blood pressure in the blood vessels that supply the lungs).

If you have erection problems sildenafil works by temporarily increasing blood flow to your penis when you get sexually excited.

In pulmonary hypertension, it works by relaxing blood vessels in the chest.

If you buy sildenafil for erectile dysfunction, it can also be known by the brand names Viagra, Aronix, Liberize, and Nipatra.

Sildenafil for pulmonary hypertension can also be known by the brand names Revatio and Grandipam.

This medicine is available on prescription and you can also buy it from most pharmacies. It comes as standard tablets, chewable tablets, and as a liquid that you swallow.

Key facts

  • It usually takes 30 to 60 minutes for sildenafil to work for erectile dysfunction. You can take it up to 4 hours before you want to have sex.
  • Taking sildenafil alone will not cause an erection. You need to be sexually excited for it to work.
  • The most common side effects are headaches, feeling sick, indigestion and dizziness. Many people have no side effects or only mild ones.
  • It can be dangerous to take sildenafil if you also take medicines called nitrates (often given for chest pain). The combination can cause a dangerous fall in your blood pressure. If you’re not sure if you’re taking a nitrate, ask your doctor or pharmacist.
  • Do not drink grapefruit juice if you’re taking sildenafil (Revatio) for pulmonary hypertension. It affects the way the medicine works.

Dosage and strength for erectile dysfunction

Sildenafil tablets for erectile dysfunction come in different strengths ranging from 25mg to 100mg.

The usual dose is 50mg when you need it. Do not take it more than once a day.

You might also like to increase your dose to 100mg or decreased it to 25mg depending on its effect.

Take sildenafil up to 4 hours before you want to have sex. For sildenafil to work properly, you’ll need to be sexually excited.

Dosage and strength for pulmonary hypertension

Sildenafil tablets for pulmonary hypertension come in 10mg and 20mg strengths.

Doses for children can range from 10mg to 20mg taken 3 times a day, depending on their weight. Do not take it more than 3 times a day.

How to take sildenafil 100mg tablets

Swallow tablets whole with a drink of water or juice (but not grapefruit juice).

For erectile dysfunction, it’s best to take sildenafil on an empty stomach. It may take longer to work if you take it with food.

How to take sildenafil 100mg liquid

If you or your child are taking sildenafil as a liquid, 1ml is usually the same as taking a 10mg tablet, but it’s important to always check the medicine label.

The medicine will come with a plastic syringe or spoon to help you take the right amount. If you do not have a plastic syringe or spoon, ask your pharmacist for one. Do not use a kitchen teaspoon as it will not measure the right amount.

If you forget to take sildenafil 100mg

If you have pulmonary hypertension and you forget to take a dose of sildenafil, take it as soon as you remember unless it’s nearly time for your next dose. In this case, just leave out the missed dose and take your next dose at the usual time.

Never take 2 doses at the same time. Never take an extra dose to make up for a forgotten one.

If you often forget doses, it may help to set an alarm to remind you. You could also ask your pharmacist for advice on other ways to help you remember to take your medicine.

If you take too much sildenafil 100mg

Taking too much sildenafil can cause unpleasant side effects like:

  • headaches
  • dizziness
  • indigestion
  • blocked nose
  • changes to your vision


Erectile dysfunction symptoms might include persistent:

  • Trouble getting an erection
  • Trouble keeping an erection
  • Reduced libido

When to see a doctor

A family doctor is a good place to start when you have erectile problems. See your doctor if:

  • You have concerns about your erections or you’re experiencing other problems such as premature or delayed ejaculation
  • You have diabetes, heart disease, or another known health condition that might be linked to erectile dysfunction
  • You have other symptoms along with erectile dysfunction

Causes of erectile dysfunction

Erectile dysfunction can result from a problem with any of these. Likewise, stress and mental health concerns can cause or worsen erectile dysfunction.

Sometimes a combination of physical and psychological issues causes erectile dysfunction. For instance, a minor physical condition that slows your response might cause anxiety about maintaining an erection. The resulting anxiety can lead to or worsen erectile dysfunction.


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