The following nonprescription or herbal products may interact with sildenafil: cimetidine Tagamet HB , St. Before starting, stopping, or changing any medications while taking sildenafil, please get the advice of your doctor or pharmacist. Follow the manufacturer’s directions to use and clean the oral syringe. Continue to take sildenafil even if you feel well. Sudden vision loss in one or both eyes can be a sign of a serious eye problem called non-arteritic anterior ischemic optic neuropathy NAION.1. Avoid taking Viagra with a large meal or high-fat meal. Viagra blood levels peak an hour after you swallow the tablet on an empty stomach. According to Ramin, if you eat a large or high-fat. The Savings Offer and Program expire on 12/31/ For further information, call , visit test1.ru, or write: Viatris Inc., P.O. 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. Email. With the VIAGRA Savings Card, eligible patients may save 50% on up to 12 prescriptions of brand-name VIAGRA per year.*. *Eligible patients could save up to $4, a year. Savings Card only works on brand-name VIAGRA. Terms and conditions apply.