Payment options: Consider how you’d like to pay. Erectile dysfunction medications require a prescription from a licensed provider. Please expect up to 4 to 6 weeks for reimbursement. More serious side effects may include a drop in blood pressure or an erection that lasts longer than four hours. In some cases, ED can cause a strain on relationships and impact self-esteem. Your primary care doctor should always know what medications you’re taking, including ED pills prescribed by another provider. This medication is taken with or without food an hour before sex.As such, GoodRx only displays the names and locations of pharmacies that have been approved by this organization. Find your nearest Walmart Pharmacy in Chicago, Illinois. . Top 10 Best Viagra in Chicago, IL – October – Yelp – Innovative Express Care, Belli’s, Rosebud on Rush, The Violet Hour, 2 E Oak Condominium Association, Healthy and . Sildenafil (Viagra). Tadalafil (Cialis). Vardenafil. These medicines are called PDE5 inhibitors. They enhance the effects of a chemical the body makes that relaxes muscles .