If the prescriber thinks ED treatment is safe and suitable, they may recommend treatment and write an e-prescription. This applies, for example, when you want to take Tadalafil brand name Cialis instead of Viagra. When oral medications might not be safe Check with your health care team before you take any medicine for erectile dysfunction. 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. However, costs and types of coverage do vary state to state. What does the process involve?Sildenafil Prices, Coupons and Patient Assistance Programs. Sildenafil is a member of the agents for pulmonary hypertension drug class and is commonly used for Erectile . Unless you live on the border with Mexico, you can NOT buy Viagra over the counter in stores like CVS, Walgreens, GNC, or Walmart. You need to go to your doctor, tell he or she you’re having problems . Yes, penile pumps (also known as ED pumps) are over-the-counter devices that work to treat erectile dysfunction (ED), similar to Viagra. Viagra (sildenafil) is .