Description
Viagra is an anti-impotence drug which enables men to achieve and sustain an erection.
The active ingredient of Viagra is Sildenafil Citrate (PDE-5 inhibitor). In response to sexual arousal, Sildenafil Citrate stimulates the release of nitric oxide (NO) in the corpus cavernosum. Nitric oxide activates the lyase enzyme which is followed by increasing levels of cyclic guanosine monophosphate (cGMP). This cyclic nucleotide relaxes smooth muscles in blood vessels of the corpus cavernosum, increasing blood flow and thus inducing an erection.
Along with the treatment of erectile disorders, Viagra effectively prolongs sexual performance, preventing premature ejaculation (PE).
Sildenafil Citrate is also used in the treatment of PAH (pulmonary arterial hypertension).
Viagra is also known as Aphrodil, Caverta, Kamagra, Suhagra, Edegra, Erasmo, Penegra, Revatio, Supra, Silagra, Zwagra.
Viagra does not protect you or your partner from sexually transmitted diseases (including HIV) or from pregnancy.
Dosage
Take one Viagra pill orally with a full glass of water, 30-60 minutes before sex.
The dosage depends on the overall health of the patient. Do not take more than one pill per day.
Take Viagra on an empty stomach, as fatty meals, grapefruit juice and alcohol can interfere with the effectiveness of the medication.
Missing a dose
Viagra is used only when needed, therefore missed dosages are not relevant. Do not exceed the doctor's recommended dose. Do not take a double dose.
Overdose
If you take an overdose of Viagra, you should seek emergency medical attention or contact your healthcare provider immediately.
Storage
Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F) and away from excess moisture and heat. Throw away any unused medicine after the expiration date. Keep out of the reach of children.
