Persons surnamed “Cialis” objected to Eli Lilly and Company’s so naming the drug, but the company has maintained that the drug’s trade name is unrelated to the surname. Swallow it whole. Priapism, if not treated promptly, can result in irreversible damage to the erectile tissue. Both medications are generic now and can be found at discounted rates, making them more accessible to the public than ever before. Counseling patients about the protective measures necessary to guard against sexually transmitted diseases, including Human Immunodeficiency Virus HIV should be considered.Three Cialis mg to 5 mg subjects, three Cialis 5 mg subjects and two placebo subjects discontinued study participation due to an adverse event (AE). Nasal congestion was the only AE leading to discontinuation reported by more than one subject (two subjects in the tadalafil to 5 mg group).  · flushing (warmth, redness, or tingly feeling); nausea, upset stomach; runny or stuffy nose; or. muscle pain, back pain, pain in your arms, legs, or back. This is not a complete list of side. CIALIS for Use as Needed. Creatinine clearance 30 to 50 mL/min: A starting dose of 5 mg not more than once per day is recommended, and the maximum dose is 10 mg not more than once in every 48 hours. Creatinine clearance less than 30 mL/min or on hemodialysis: The maximum dose is 5 mg not more than once in every 72 hours [see .