More serious side effects may include a drop in blood pressure or an erection that lasts longer than four hours. Lemonaid doctors and nurse practitioners are licensed to prescribe in all the states where we operate. Privacy: Confirm that your personal data and payment details are confidential. Generic vs. It’s best to check your chosen provider’s site for more information. Erectile dysfunction medications require a prescription from a licensed provider.Generic Cialis, or Tadalafil, is available in several doses in tablet form: milligrams (mg), 5 mg, 10 mg, and 20 mg. Depending on the dose for ED, you can use it as needed . Find the best tadalafil or cialis prices near you now with our cost comparison tool and start saving today. Tadalafil is the active ingredient in a branded drug called Cialis. Tadalafil is approved by the FDA to treat erectile dysfunction. It’s available from Lemonaid in 5mg, 10mg and .