This information is reviewed by a licensed practitioner who will assess your eligibility for the medication. Please expect up to 4 to 6 weeks for reimbursement. Most online pharmacies do not prescribe or refill controlled substances, like Adderall, Xanax, or oxycodone. When taken at the correct time and paired with sexual stimulation, the erection lasts long enough for successful intercourse. Here are some key factors to consider when deciding: Pricing: Know how much your monthly supply will cost with shipping and tax. · Compare prices. Drug prices vary by pharmacy. Use GoodRx to find current prices and discounts. Get free coupons. GoodRx coupons can help you pay less than the cash price for your prescription. Show to your pharmacist. It’s easy. Just bring your free coupon to the pharmacy when picking up your prescription. Depending on your symptoms and needs, you may be prescribed Viagra, sildenafil, Cialis, tadalafil, Stendra, paroxetine, or a combination of tadalafil and sildenafil, available as mints or pills. Prices range from $3 to $ per dose or $82 to $ for a monthly supply, depending on the medication. Brand Names: Revatio. Sildenafil is used to treat male sexual function problems (impotence or erectile dysfunction-ED). Learn more about Viagra oral. 1. This is a generic drug. Even.