Details
Viagra Indications
Viagra drug is recommended for men with erectile dysfunction, which is defined as the inability to achieve or maintain penile erection necessary for successful sexual intercourse.
For effective action of the drug Viagra desired sexual arousal.
Contraindications
- Hypersensitivity to the active substance or any of the excipients of the drug.
- Concomitant use of nitric oxide donors (such as amyl nitrite) or nitrates in any form is contraindicated, since it is known that sildenafil affects the way the metabolism of nitric oxide / cyclic guanosine monophosphate (cGMP) and potentiates the hypotensive effect of nitrates.
- A condition in which sexual activity is not recommended (eg severe cardiovascular disorders such as unstable angina or heart failure, severe).
- Loss of vision in one eye because of nearterialnoyi anterior ischemic optic neuropathy regardless of whether the condition is associated with previous PDE5 inhibitors or not.
- The presence of diseases such as liver dysfunction severe, hypotension (blood pressure below 90/50 mm Hg. In.), Recently transferred stroke or myocardial infarction and known hereditary degenerative retinal diseases such as retinitis pigmentosa (a small number of patients have genetic disorders of retinal phosphodiesterases) because the safety of sildenafil has not been investigated in these subgroups.
Dosage & Administration
The drug is used orally.
Adults. The recommended dose is 50 mg Viagra and applied as necessary about an hour before sexual activity. Depending on the efficacy and tolerability the dose may be increased to 100 mg or reduced to 25 mg. The maximum recommended dose is 100 mg. The frequency of use of the maximum recommended dose is 1 time per day. Using the drug Viagra during meal preparation action may occur later than when used on an empty stomach.
Elderly patients. The need for dose adjustment in elderly patients (≥ 65 years) No.