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Are there any interactions with Lantus (insulin glargine)?

Lantus is a newer long-acting form of insulin that you inject under the skin into the fat (areas of the abdomen, thigh, and upper arm). Several drugs may raise or lower your insulin requirements, including beta-blockers such as atenolol (brand name tenormin) and propranolol (Inderal), clonidine (Catapres), steroid medicines such as prednisone (Orasone), thyroid medicines such as levothyroxine (Synthroid), and thiazide diuretics such as hydrochlorothiazide (Microzide).

Alcohol can cause low blood sugar in persons taking insulin. .

To prevent harmful drug interactions, tell your doctor and pharmacist about all of the medicines you take, including over-the-counter products. Don't mix Lantus with other types of insulin or any other solution. .

Sources:
Lantus Product information, Sanofi-Aventis U.S. LLC, 2006.
Hansten, P.D., J.R. Horn. Drug Interactions Analysis and Management. Applied Therapeutics, 2001.
Drug Facts and Comparisons. Facts & Comparisons, 2006.

This answer prepared 2/8/2001.
This information updated 2/7/2007.