No dosage adjustment is required for patients with renal impairment if creatinine clearance is greater than or equal to 10 mL min see Clinical Pharmacology 12 cialis online no prescription Friese CR, Pini TM, Li Y, Abrahamse PH, Graff JJ, Hamilton AS, Jagsi R, Janz NK, Hawley ST, Katz SJ, Griggs JJ