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Drug Info > V > Viagra
Please enter the drug name or
DIN (Drug Identification Number)


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ABCDEFGHIJKLMNOPQRSTUVWXYZ

Brand Name

Viagra

Common Name
sildenafil


In this drug factsheet:



DIN (Drug Identification Number)

02239768 VIAGRA 100MG TABLET
02239766 VIAGRA 25MG TABLET
02239767 VIAGRA 50MG TABLET

How does this medication work? What will it do for me?

Sildenafil belongs to a group of medications called phosphodiesterase type 5 inhibitors. It is used for the treatment of erectile dysfunction (male impotence). It helps to achieve and keep an erection sufficient for sexual activity. It does this by allowing a greater blood flow into the penis when a man is sexually aroused. It works only with sexual stimulation and does not increase sexual desire.

This medication may be available under multiple brand names and/or in several different forms. Any specific brand name of this medication may not be available in all of the forms or approved for all of the conditions discussed here. As well, some forms of this medication may not be used for all of the conditions discussed here.

Your doctor may have suggested this medication for conditions other than those listed in these drug information articles. If you have not discussed this with your doctor or are not sure why you are taking this medication, speak to your doctor. Do not stop taking this medication without consulting your doctor.

Do not give this medication to anyone else, even if they have the same symptoms as you do. It can be harmful for people to take this medication if their doctor has not prescribed it.

How should I use this medication?

The usual recommended dose is 50 mg taken as needed, approximately 30 to 60 minutes before sexual activity. However, the medication may be taken any time from 4 hours to an hour and a half before sexual activity. Based on the effectiveness and side effects of the medication, the dose may be increased to 100 mg or decreased to 25 mg.

The maximum recommended dose is 100 mg and it is not recommended to take more than one dose per day. Sildenafil may be taken with or without food, but taking it with a high-fat meal may increase the time before the medication starts working.

Many things can affect the dose of a medication that a person needs, such as body weight, other medical conditions, and other medications. If your doctor has recommended a dose different from the ones listed here, do not change the way that you are taking the medication without consulting your doctor.

It is important to take this medication exactly as prescribed by your doctor. Do not take higher doses of this medication than those prescribed by your doctor. Contact your doctor if you take a greater dose of sildenafil than prescribed.

Do not dispose of medications in wastewater (e.g. down the sink or in the toilet) or in household garbage. Ask your pharmacist how to dispose of medications that are no longer needed or have expired.





What form(s) does this medication come in?

25 mg
Each blue, round, diamond-shaped tablet, marked "PFIZER" on one side and "VGR 25" on the other side, contains sildenafil citrate equivalent to 25 mg of sildenafil. Nonmedicinal ingredients: anhydrous dibasic calcium phosphate, croscarmellose sodium, FD&C Blue No. 2 Aluminum Lake, hypromellose, lactose, magnesium stearate, microcrystalline cellulose, titanium dioxide, and triacetin.

50 mg
Each blue, round, diamond-shaped tablet, marked "PFIZER" on one side and "VGR 50" on the other side, contains sildenafil citrate equivalent to 50 mg of sildenafil. Nonmedicinal ingredients: anhydrous dibasic calcium phosphate, croscarmellose sodium, FD&C Blue No. 2 Aluminum Lake, hypromellose, lactose, magnesium stearate, microcrystalline cellulose, titanium dioxide, and triacetin.

100 mg
Each blue, round, diamond-shaped tablet, marked "PFIZER" on one side and "VGR 100" on the other side, contains sildenafil citrate equivalent to 100 mg of sildenafil. Nonmedicinal ingredients: anhydrous dibasic calcium phosphate, croscarmellose sodium, FD&C Blue No. 2 Aluminum Lake, hypromellose, lactose, magnesium stearate, microcrystalline cellulose, titanium dioxide, and triacetin.

Who should NOT take this medication?

Do not take this medication if you:

  • are allergic to sildenafil or any ingredients of this medication
  • are taking any type of nitrate medication in any form (oral, sublingual [under the tongue], skin patch, or spray). Nitrate medications include nitroglycerin and related medications that are used for the relief of chest pain or angina. They also include amyl nitrite "poppers." Use of these medications with sildenafil could cause a sudden severe drop in blood pressure that could lead to dizziness, fainting, heart attack, or stroke.
  • have been advised by your doctor not to engage in sexual activity

Nitrates are found in medications that are used to treat angina (chest pain). If you are not sure if you are taking nitrates, ask your doctor or pharmacist.

Nitrates must NOT be taken by anyone who is using sildenafil because they can cause your blood pressure to drop very low. This may cause dizziness, fainting, heart attack, or stroke.



 

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