Hi Anne Marie,

I looked it up and double checked on the dosage. 20mg of Lisinopril is considered a maintenance dose in some cases. The "usual" dosage is 5-10 which I'm on for heart disease issues. The drug is also used to treat a variety of other ailments. Dosage and maintenance dosages depend on what it's being used for varies from 5mg to over 40mg.

"T"