Pearlman says it can often take months to get an appointment with a healthcare provider who can prescribe the medications commonly used to treat ED. You can also buy Viagra, generic unbranded Sildenafil , and other licensed ED treatments online, from approved sites, without needing to visit your GP. But, some side effects, including flushing, heartburn, sinus congestion, and headaches, might prevent some men from taking them even though they work well. Can I buy any other ED medications over the counter? As part of the sale, it is recommended that you document this with your GP and have a health-check within 6 months if the regular need for the medication is required. Men were also turning to unlicensed and potentially harmful remedies, such as Kamagra an oral jelly that claims falsely to contain the same ingredients as Viagra.7 Over The Counter Medications for ED. Depending on the cause of erectile dysfunction, the most effective treatment can vary. Typically, the best way to treat erectile dysfunction is to address the . 1. It Targets the Problem and Works Quickly. Being a topical means MED targets your penis directly and offers a “quick onset of action,” Dr. Pearlman . Cost Overdose Ask your doctor Q&A Drug Images What is Viagra? If you have erectile dysfunction (ED), your doctor may recommend that you take Viagra. It’s a .