Patients should seek prompt medical attention if their erection lasts longer than four hours. Consume Cialis orally with water. Online ED consultations offer privacy, convenience, and affordability while allowing you to quickly get the medications you need—the same day, with some services. Avoid eating too much food before using ED medication. These PDE5 inhibitors may cause headache, flushing, drop in blood pressure, or other adverse effects. You may notice the effects of either medication ending sooner or later based on factors such as your body weight, your eating habits or certain medical conditions.Branded Cialis available too? Hims: $5–$25 per dose: –20 mg • shipped to your home • prescription required • doctor available through service: yes: Roman: $11–$44 per dose. Tadalafil Brand names: Cialis, Adcirca. Tadalafil. Find out how tadalafil treats erectile dysfunction, pulmonary hypertension and benign prostate enlargement, and how to take it. Hims vs. Roman: Products, Services, Prices, and Reviews. Sildenafil is available from Hims starting at $4 per use. Cialis. This branded product is another PDE5 inhibitor. It is the branded.