Furthermore, the longer half-life is the basis for tadalafil’s daily therapeutic use in treating pulmonary arterial hypertension. If we combine this information with your protected health information, we will treat all of that information as protected health information and will only use or disclose that information as set forth in our notice of privacy practices. Do not take a double dose or more than one dose per day to make up for a missed one. Adults 65 years of age and older—25 mg as a single dose no more than once a day, 1 hour before sexual intercourse. Tell your doctor if tadalafil is not working well or if you are experiencing side effects.AdComplete the Online Consultation with our Doctor. Personalize Your Needs. If Appropriate, Get a Prescription for ED from RexMD®. Free Shipping AvailableFree Shipping · Real Doctors · Discreet Packaging · Personalized Plan/5 (3, reviews). AdSave on 50, Brand Name & Generic Drugs With SingleCare®. Get Your Free Rx Coupon Now! Find the Lowest Price for Your Prescription and Save at Your Local Pharmacy Rx coupons · Select pharmacies · BBB accredited · Text, email, or print/5 (2, reviews)Site visitors: Over K in the past month.  · For oral dosage forms (suspension or tablets): Adults—20 milligrams (mg) 3 times a day. Your doctor may adjust your dose as needed and tolerated. However, the dose is usually not more than 80 mg 3 times a day. Children 1 year of age and older weighing 45 kilograms (kg) or more—20 mg 3 times a day. Your doctor may adjust your dose as .