Common side effects include headache, facial flushing, indigestion, and dizziness. Still other online pharmacies specialize in medications for only a select few health concerns or conditions. Erectile dysfunction medications require a prescription from a licensed provider. We also looked at additional services, such as access to digital pharmacies and home delivery options. Some people may also have ringing in their ears tinnitus or dizziness. The same increase in nitric oxide that helps penile muscles relax also opens up blood vessels, leading to a drop in blood pressure. Medical consultations were also taken into consideration, as PDE5 inhibitors require a valid prescription from a licensed medical provider.If you’re interested in buying Viagra online, five of the best options available are Hims, Roman, Lemonaid, Optum Store, and REX MD. Read on for full details on the process and pricing. A quick. Best price for generic Viagra when bought in bulk: Optum Store Sildenafil If you are experiencing the symptoms of erectile dysfunction (ED), you may have considered using Viagra or a similar ED. Lemonaid can prescribe sildenafil (generic Viagra), tadalafil (generic Cialis), and vardenafil (generic Levitra). You can get a prescription online following a quick and easy visit with a member of our clinical team. Then the Lemonaid pharmacy, licensed in all 50 states, will ship your meds directly to your door in discreet packaging.