Generic Viagra — is the first and the most well-known remedy for male erection. Its active ingredient is called Sildenafil. It provides enhanced blood flow to the male genital area. The cavernous body is relaxed, then is filled with blood abundantly, whereby an erection appears, sufficient to perform an act of intimacy. Sildenafil has no effect on the brain. An erection is achieved only if there is a natural sexual arousal.

Sildenafil Citrate tablet

What is this medicine?

Generic Viagra is used to treat male Impotence also known as Erectile Dysfunction. Also, it has been approved by US FDA for treating pulmonary arterial hypertension.

What should I tell my health care provider before I take this medicine?

They need to know if you have any of these conditions:

eye or vision problems, including a rare inherited eye disease called retinitis pigmentosa

heart disease, angina, high or low blood pressure, a history of heart attack, or other heart problems

kidney disease

liver disease

stroke

an unusual or allergic reaction to sildenafil, other medicines, foods, dyes, or preservatives

How should I take this medicine?

Take this medicine by mouth with a glass of water. The dose is usually taken 1 hour before sexual activity. You should not take the dose more than once per day. Do not take your medicine more often than directed. Overdosage: If you think you have taken too much of this medicine contact a poison control center or emergency room at once. NOTE: This medicine is only for you. Do not share this medicine with others.

What may interact with this medicine?

Do not take this medicine with any of the following:

cisapride

methscopolamine nitrate

nitrates like amyl nitrite, isosorbide dinitrate, isosorbide mononitrate, nitroglycerin

nitroprusside

other sildenafil products (Revatio)

This medicine may also interact with the following:

certain drugs for high blood pressure

certain drugs for the treatment of HIV infection or AIDS

certain drugs used for fungal or yeast infections, like fluconazole, itraconazole, ketoconazole, and voriconazole

cimetidine

erythromycin

rifampin

This list may not describe all possible interactions. Give your health care providers a list of all the medicines, herbs, non-prescription drugs, or dietary supplements you use. Also tell them if you smoke, drink alcohol, or use illegal drugs. Some items may interact with your medicine.

What should I watch for while taking this medicine?

If you notice any changes in your vision while taking this drug, call your doctor or health care professional as soon as possible. Call your health care provider right away if you have any change in vision. Contact you doctor or health care professional right away if the erection lasts longer than 4 hours or if it becomes painful. This may be a sign of a serious problem and must be treated right away to prevent permanent damage. If you experience symptoms of nausea, dizziness, chest pain or arm pain upon initiation of sexual activity after taking this medicine, you should refrain from further activity and call your doctor or health care professional as soon as possible. Using this medicine does not protect you or your partner against HIV infection (the virus that causes AIDS) or other sexually transmitted diseases.

What side effects may I notice from this medicine?

Side effects that you should report to your doctor or health care professional as soon as possible:

allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue

breathing problems

changes in hearing

changes in vision, blurred vision, trouble telling blue from green color

chest pain

fast, irregular heartbeat

men: prolonged or painful erection (lasting more than 4 hours)

seizures

Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):

diarrhea

flushing

headache

indigestion

stuffy or runny nose

This list may not describe all possible side effects. Call your doctor for medical advice about side effects.

Where can I keep my medicine?

Keep out of reach of children. Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F). Throw away any unused medicine after the expiration date.