This is important for your overall health and safety, as certain medications can negatively interact with each other or cause existing conditions to worsen. Levitra vardenafil : This medication is taken one hour before sex and can last up to 24 hours. Tadalafil is its active ingredient and is available as a generic drug. According to the FDA, generic medications contain the same active ingredients as brand names, meaning there’s no difference in effectiveness or safety. Stendra avanafil : This is an as-needed medication taken 30 minutes before sex and can last up to six hours. Never purchase ED medications from a site or service that doesn’t require a prescription and medical documentation. The enlarged prostate interferes with the normal flow of urine from the bladder and urinary tract, resulting in lower urinary tract symptoms, such as trouble urinating.The Lemonaid Pharmacy can deliver it to you for $2/pill, including FREE delivery. Our medical team can prescribe it in a 20mg, 60mg or mg dose. To choose the best ED . Best Low Cost: GoodRx Fastest Delivery: Blink Health: Sesame Sign Up Now Key Specs Cost: Consultation prices vary based on the prescriber; $5 generic . It belongs to the drug class known as PDE5 inhibitors. Tadalafil is its active ingredient and is available as a generic drug. The FDA has approved Cialis to treat ED, .