Dosing Guidelines Typical Cialis dosages will differ depending on the conditions it’s prescribed to treat as well as other factors. Priapism, if not treated promptly, can result in irreversible damage to the erectile tissue. A similar study reported a consistent result, with a risk estimate of 2. While this effect should not be of consequence in most patients, prior to prescribing CIALIS, physicians should carefully consider whether their patients with underlying cardiovascular disease could be affected adversely by such vasodilatory effects. Brand-name versions of the drug approved for PAH include Adcirca. Patients who demonstrate hemodynamic instability on alpha-blocker therapy alone are at increased risk of symptomatic hypotension with concomitant use of PDE5 inhibitors. BPH occurs when the prostate and the surrounding tissues become enlarged.Strengths: milligrams (mg), 5 mg, 10 mg, and 20 mg In this article, you’ll find additional information about Cialis’s dosage and details on how to take the drug. For a comprehensive overview of Cialis, view this article. Dosage summary For details about the drug’s dosage, see the “ Cialis: Dosage ” section below. Doctors usually start their patients on the mg dose, though 5 mg may be appropriate if needed for greater efficacy. A daily dose of 5 mg may be too much for some people and lead to. Dosing Guidelines Cialis is a prescription medication containing the active ingredient tadalafil. Cialis belongs to a group of medications known as phosphodiesterase-5 (PDE-5) inhibitors. Healthcare providers commonly prescribe tadalafil to treat erectile dysfunction (ED).