Other warning signs of an unsafe online pharmacy include outdated medication, no customer service, or suspiciously low prices. Some platforms have a digital pharmacy that ships the medication to your home, while others send an electronic prescription to your local pharmacy. Shipping: Discreet, fast shipping is a must. This medicine also works best when you take it an hour before sex on an empty stomach. Your doctor or other health care professional can recommend one for you based on these factors, other health conditions you have and any other medicines you take. Side effects Side effects of oral ED medicines are often mild. This allows the smooth muscles in the penis to relax and fill with blood.Can you get erectile dysfunction pills over the counter? You can buy OTC supplements that may help treat ED from most places that sell supplements. Currently, there are no over the counter alternatives to Viagra available. Viagra (sildenafil) is a prescription medication, meaning it’s not available over the counter from your local. Generic Viagra (sildenafil) is an alternative to the branded Viagra drug that can be used for treating erectile dysfunction (ED). It’s now sold by many manufacturers, including online.