how often viagara can be used for sexual intercourse?

Answer 1

Viagra is absorbed and processed rapidly by the body and is usually taken 30 minutes to 1 hour before intercourse. Results vary depending on the cause of erectile dysfunction, but studies have shown that Viagra is effective in 75% of cases. It helps men with erectile dysfunction associated with diabetes mellitus (57%), spinal cord injuries (83%), and radical prostatectomy (43%).


For most men with erectile dysfunction, the recommended initial dose of sildenafil is 50 mg taken as needed approximately 1 hour before anticipated sexual activity. Although sildenafil may be taken anywhere from 4 hours to 30 minutes before sexual activity, peak plasma concentrations usually are achieved within 1 hour (range: 30–120 minutes) when taken on an empty stomach; the erectile response is substantially diminished at 4 hours compared with 2 hours after administration.
Depending on effectiveness and tolerance, the dose subsequently may be increased to a maximum recommended level of 100 mg or decreased to 25 mg.. It currently is recommended that the drug be used no more frequently than once daily; in early studies, more frequent administration (e.g., 3 times daily) was associated with an increased incidence of certain adverse effects (e.g., myalgias). Evidence from dose-ranging studies indicates that erectile response is greater at 50- or 100-mg doses than at 25 mg.

Because geriatric patients may have age-related decreases in renal function and both the pharmacologic and adverse effects of sildenafil may be increased in such patients, consideration should be given to initiating therapy with the drug at a reduced dose of 25 mg in geriatric men 65 years of age and older with erectile dysfunction. Dosage titration should be initiated at 25 mg for patients with hepatic or severe renal impairment with erectile dysfunction (see Dosage and Administration: Dosage in Renal and Hepatic Impairment).

Reduced initial sildenafil dosage also is recommended for patients receiving drugs concomitantly that are potent cytochrome P-450 (CYP) isoenzyme 3A4 inhibitors including certain macrolide anti-infectives (e.g., erythromycin), azole antifungals (e.g., itraconazole, ketoconazole), or certain antiretrovirals (human immunodeficiency virus [HIV] protease inhibitors, delavirdine). For ketoconazole, itraconazole, and erythromycin, the manufacturers recommend that dosage titration be initiated at 25 mg for the treatment of erectile dysfunction and if the dose is well tolerated dosage can be titrated upward cautiously as necessary. The manufacturers of certain other antiretrovirals (amprenavir, atazanavir, delavirdine, fosamprenavir, indinavir, nelfinavir, ritonavir, saquinavir, lopinavir in fixed combination with ritonavir, or tipranavir in combination with low-dose ritonavir) and some experts recommend that sildenafil be used with caution and at a reduced dosage of no more than 25 mg once every 48 hours in patients receiving these antiretrovirals.

Answer 2

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Answer 3

The package insert says once a day. As with any prescription medication, you should ask your doctor about these kinds of things. I used to work as a RN and I'm amazed at the amount of bad answers regarding health and medication issues.

The other thing is, are you asking how often you can have sex after taking Viagra? The effect lasts for several hours so that you can have sex more than 1 time for each dose if that is possible and healthy for you.

Answer 4

It can be used as long as you are healthy enough to have intercourse. Only once a day in necessary if you are planning any activity.