Ridel Niacin Insulin Lispro Protamine + Insulin Lispro contains Insulin Lispro
ModerateInsulin Lispro, sold under the brand name Humalog 200, may need a higher dose when you also take niacin. Niacin is one of several medicines that can raise blood sugar, and the list includes some other drugs, but niacin is the one this leaflet names alongside insulin lispro.
These medicines are often taken together with some care. Your doctor may change a dose, space them apart or check on you more often. Make sure your doctor and pharmacist know you take both.