They should display a red NABP badge on their site, usually at the bottom. As part of the sale, it is recommended that you document this with your GP and have a health-check within 6 months if the regular need for the medication is required. According to the FDA, dietary supplements that claim to enhance your sexual performance can contain undisclosed drugs that are often found in prescription-only ED drugs, sometimes in excessively high doses. Tadalafil is another licensed oral medication that treats ED, but it lasts for much longer — up to 36 hours Viagra only lasts around four hours. Do you need a prescription to get Viagra over the counter? Registered prescribers — you can only buy prescription ED drugs online if you have a pre-existing prescription from your family physician. This applies, for example, when you want to take Tadalafil brand name Cialis instead of Viagra.Find all pharmacy and store locations near Council Bluffs, IA. Easily browse Walgreens locations in Council Bluffs that are closest to you. Since , Viagra has been available over the counter as Viagra Connect. Both Viagra and Viagra Connect contain the same active ingredient: Sildenafil. . Getting Viagra from Walgreens, CVS Health, Kroger or other main-street chemists. Main-street chemists and pharmacies, including Walgreens (or Duane .