A deep dive into the ins and outs of purchasing this popular medication online, ensuring that you make informed decisions every step of the way. Medical consultations were also taken into consideration, as PDE5 inhibitors require a valid prescription from a licensed medical provider. And as the digital age continues to expand, staying informed is the best way to ensure you benefit from the convenience without compromising on safety. Tell your doctor if tadalafil is not working well or if you are experiencing side effects. More serious side effects may include a drop in blood pressure or an erection that lasts longer than four hours.Cialis is approved by the FDA to treat erectile dysfunction (ED). Our medical team can prescribe Cialis 5mg, 10mg, and 20mg. The starting dose we generally recommend is 10mg. Tadalafil is the name for the active chemical ingredient in Cialis. PDE-5 inhibitors is the name of the group of medicines. 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. Generic Cialis Availability. Last updated on Cialis is a brand name of tadalafil, approved by the FDA in the following formulation(s): These medications may be counterfeit and potentially unsafe. If you purchase medications online, be sure you are buying from a reputable and valid online pharmacy. Ask your health care provider.