A different study published in the Journal of Sexual Medicine also found that some men with PE were able to recover in less time after sex after using Viagra. We rely on peer-reviewed studies, academic research institutions, and medical associations. Always talk to your doctor about the risks and benefits of any treatment. A prospective clinical study. Stop taking VIAGRA and call your healthcare provider right away if you have any sudden vision loss sudden hearing decrease or hearing loss. The products discussed in this site may have different product labeling in different countries.Cost: Branded Viagra is priced at $90 per dose regardless of the milligram dosage and you will be able to work with your prescriber to find which dosage is right for you. Sildenafil is also. Compare prices and print coupons for Viagra (Sildenafil) and other drugs at CVS, Walgreens, and other pharmacies. Prices start at $ The typical dose is to take 50 mg of sildenafil (Viagra) by mouth, about 1 hour before sex, as needed. The maximum recommended dose is mg. Don’t take sildenafil (Viagra) more than once daily (at any dose). Written by Brian Leonard, PharmD, BCACP, BCGP.