Insurance can help you save even more on consultations and medications. Dosing Guidelines Typical Cialis dosages will differ depending on the conditions it’s prescribed to treat as well as other factors. Stendra avanafil : This is an as-needed medication taken 30 minutes before sex and can last up to six hours. Most erectile dysfunction medications belong to the drug class known as PDE5 inhibitors , which help relax the muscles and increase blood flow to allow for a full erection. Tadalafil was approved in in the United States for the treatment of pulmonary arterial hypertension [28] and is under regulatory review in other regions for this condition.Tips to Get the Most Out of Tadalafil (Cialis) What it is Why it works Need vs. daily dosing Time to take effect How long it lasts Tips What to avoid Other considerations Side effects . You need a prescription to get Cialis, which you can acquire through your doctor or telehealth sources. Online ordering can be a great alternative if you prefer the . 1. Check your insurance coverage Since Cialis is available as a generic, many insurance plans now cover it (to varying degrees). Generally, Medicare does not cover Cialis, since .