You might decide against buying Viagra Connect from the pharmacy, perhaps because you feel you need a different dose of Viagra, maybe you want a more cost-effective ED treatment or maybe the discretion of an online solution is more appealing to you. Clinically proven to help you get an erection when you need it. Can I buy any other ED medications over the counter? A prescription from your GP may allow you to get Viagra or unbranded Sildenafil for a lower cost than over-the-counter Viagra Connect. These medicines are called PDE5 inhibitors. Sildenafil is a drug that helps improve blood flow to the penis, allowing you to achieve a firm, longer-lasting erection more easily. As with sildenafil, a high-fat meal or alcohol keep the body from absorbing it as quickly.AdEnjoy low prices and get fast, free delivery with Prime on millions of products. Browse thousands of brands and find deals on male ed meds at Amazon®. Shop Now!1M+ visitors in the past month. The four main medicines taken by mouth for erectile dysfunction are: Avanafil (Stendra). Sildenafil (Viagra). Tadalafil (Cialis). Vardenafil. These medicines are called PDE5 inhibitors. They enhance the effects of a chemical the body makes that relaxes muscles in the penis, called nitric oxide.  · Men will soon have a new option for treating erectile dysfunction (ED) that supposedly works faster than regular ED medication — and is available without a prescription. In June, the FDA approved the over-the-counter sale of MED (Eroxon), a topical gel treatment for ED. MED is supplied in single-use tubes.