The mean times adjusted for baseline to onset of limiting angina were Based upon measurements of sildenafil in semen of healthy volunteers 90 minutes after dosing, less than 0. As in the other titration studies, patients were started on 50 mg and allowed to adjust the dose up to mg or down to 25 mg of VIAGRA; all patients, however, were receiving 50 mg or mg at the end of the study. Box , Mission, KS If your pharmacy does not participate, you may be able to submit a request for a rebate in connection with this Savings Offer. The studies that established benefit demonstrated improvements in success rates for sexual intercourse compared with placebo.Find answers to your questions about ED with VIAGRA® (sildenafil citrate). This Savings Offer is limited to 50% savings off the amount of your co-pay or your out-of-pocket cost, whichever is less, with a maximum savings of $ off each prescription for up to 12 prescriptions in a calendar year. Total maximum savings for this Savings Offer. Sildenafil is a generic drug, which is an exact copy of the active drug in a brand-name medication. The generic is considered to be as safe and effective as the original drug. And generics tend to.  · Sildenafil: 20 mg / 30 tablets. *Lowest online price at national pharmacy chains Costco, CVS, RiteAid, Walgreens and Walmart as of 1/19/ Prices vary by location and pharmacy, see for actual pricing in your area. Visit to find your nearest coupon prices.