|
|
Before Using This Medicine
The presence of other medical problems may affect the use of Viagra. Make sure you tell your doctor if you have any other medical problems, especially:
- Arrhythmias (irregular heartbeat) or
- Coronary artery disease or
- Heart attack, history of (within the last 6 months) or
- High blood pressure or
- Low blood pressure or
- Stroke, history of (within the last 6 mont
hs)¡XChance of problems occurring may be increased
- Abnormal penis, including curved penis and birth defects of the penis¡XChance of problems occurring may be increased
- Bleeding problems
- Retinitis pigmentosa¡XChance of problems occurring may be increased. It is not known if the medicine is safe for use in these patients
|
Overdose
No overdose of Viagra has been reported. However, any medication taken in excess can have serious consequences. If you suspect an overdose, seek medical attention immediately.
|
What side effects can this medication cause?
Side effects cannot be anticipated. If any develop or change in intensity, inform your doctor as soon as possible. Only your doctor can determine if it is safe for you to continue taking Viagra.
More common side effects may include:
Abnormal vision (color tinge, blurring, sensitivity to light), acid indigestion, diarrhea, flushing, headache, nasal congestion, urinary tract infection
Heart attack, stroke, heart irregularities, dangerous surges in blood pressure, and sudden death have all been reported after use of Viagra, usually in men with existing cardiac risk factors
, and typically during or shortly after sex.
|
|
|
|
Before Using This Medicine
Older adults¡XElderly people are especially sensitive to the effects of Viagra, which may increase their chance of having side effects. Patients 65 years of age and older are started on a low dose, 25
mg, of Viagra. The dose may be increased by a doctor as needed and tolerated.
|
Why is this drug prescribed?
Viagra is used to treat impotence in men. Viagra increases the body's ability to achieve and maintain an erection during sexual stimulation.
|
Proper Use of This Medicine
Doses range from 25 milligrams to 100 milligrams, depending on the drug's effect. The usual dose is 50 milligrams. If you are over 65, have liver or kidney problems, or are taking erythromycin, ketoco
nazole, itraconazole, ritonavir, or saquinavir a dose of 25 milligrams may be sufficient. Your doctor will adjust the dosage if the drug is not working properly for you.
Take Viagra only bef
ore sexual activity. The manufacturer recommends a maximum of 1 dose per day (1 dose every 2 days for those taking ritonavir).
To avoid low blood pressure, do not take the 50-milligram or 10
0-milligram dose of Viagra within 4 hours of taking an alpha-blocking drug such as Cardura.
|
|
