Pearlman says the availability of an easy-to-access treatment for men dealing with ED is welcome news. Sildenafil is a drug that helps improve blood flow to the penis, allowing you to achieve a firm, longer-lasting erection more easily. Out of embarrassment, many men were buying medicines online that were sold as Viagra, but actually contained counterfeit medicines. Most will prescribe the 50mg tablet at first to patients who are just starting to take Viagra. Oral ED medications are generally well-tolerated, Dr.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 . 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 .