Drug Name

Brand Viagra (Sildenafil)

Drug Uses

Erection problems may be observed by different causes including tiredness, diseases, relationship problems, or stress. Men think that for sexual activities they need erection. Most men do not need strong erection for sexual intercourse. In March of 1998, Viagra was approved by FDA in the United States as the first oral drug for erectile dysfunction treatment. During the first week of Viagra launch more than 100,000 Viagra pills were reported to be sold to men suffering from erectile dysfunction. Within several months, Viagra had been sold to almost two millions of erectile dysfunction sufferers. Since launch Viagra has earned a great reputation around the world for its successful erectile dysfunction treatment. Viagra helped millions of men suffering from erectile dysfunction to feel satisfaction in their sex life.

How to use

According to PFIZER recommendations Brand Viagra is usually taken only when needed, 30 minutes to 1 hour before sexual activity. You may take it up to 4 hours before sexual activity. Do not take Brand Viagra more than once per day.
Brand Viagra can help you have an erection when sexual stimulation occurs. An erection will not occur just by taking a pill. Follow your doctor's instructions.
During sexual activity, if you become dizzy or nauseated, or have pain, numbness, or tingling in your chest, arms, neck, or jaw, stop and call your doctor right away. You could be having a serious side effect of sildenafil.

Drug Class and Mechanism

After taking Viagra, an active ingredient Sildenfail Citrate dilates penile erectile tissues by relaxing smooth muscle, stimulating the inflow of blood to genitals. Thence an individual achieves normal erection, sufficient for sexual intercourse. Viagra is not an aphrodisiac. When a man takes Viagra, he achieves an erection only in case of being sexually stimulated. After sexual intercourse, the penis naturally comes into non-erected state, erectile tissues of the penis narrow. Viagra is indicated for oral administration 30 minutes before expected sexual activity. Practically, by the body's natural mechanisms erection is achieved and Viagra effect lasts for four hours. Viagra is recommended to be taken with water on an empty stomach because taking with a meal will delay the absorption rate of the Viagra.

Missed Dose

Brand Viagra is used as needed, so you are not likely to be on a dosing schedule.

Warnings/Precautions

Contraindications to application: liver and kidneys disorders, anatomic deformations of the penis, acute leukemia, erythroid myeloma, tendency to bleedings, pigmentary retinitis, crescent-cellular anaemia, stomach ulcer, arterial hypertension, hypotonia, serious arrythmia, unstable stenocardia, impaired cardial function, and heart attack or stroke recently experienced in the past six months. Viagra is forbidden for children under 18 years old.

Possible Side Effects

Viagra may cause certain side effects, such as headache, vasodilatation, dizziness, hypotension, asthenia, nasal congestion, arthralgia, lacrimation, dyspepsia, diarrhea, nausea, lumbodynia, abdominalgia, sleeplessness, short wind, and skin rash.