This page couldn't be found. Sorry about that! StreetRx provides national information on the latest street prices for prescription drugs including hydrocodone. Find out what others paid for their prescription drugs today. How much does sildenafil cost? The price you pay for sildenafil can vary. Your cost may depend on your treatment plan, your insurance coverage, and the pharmacy you use. To find out how much. Comparing pharmacies: The price of Viagra may vary depending on which pharmacy you use, so it can help to compare prices across pharmacies to find the lowest cost. Viagra works by enhancing the effects of nitric oxide, a natural chemical that helps to relax the muscles in the penis and stimulate blood flow there. Viagra can be purchased through a traditional pharmacy or online, but in both cases, you need a prescription to purchase it legally and safely. For in-store pricing, call your local Walgreens Pharmacy locator. For online pricing, call 877-250-5823. This information should not be used to decide whether or not to take this medicine or any other medicine. Only your health care provider has the knowledge and training to decide which medicines are right for you. Find the most popular and affordable Erectile Dysfunction medication. Save with or without insurance on brand and generic alternatives used to treat Erectile Dysfunction. Compare prescription drug prices and find coupons at more than 70,000 US pharmacies. Save up to 80% instantly! Prices range from just over $1 a dose for generic Cialis® (tadalafil) to $135 a dose for chewable brand-name Viagra. Viagra (sildenafil) is used to treat erectile dysfunction or impotence in men. Includes Viagra side effects, interactions and indications.