Onset  1 to 2 hours
Peak time 
Duration  24 hours

Insulin glargine (brand name Lantus[1]) is a long-acting insulin manufactured by Sanofi Aventis. It is dosed once or twice a day in two equal doses, and is available in a vial or in a cartridge for use with the OptiClik pen. Lantus has an acidic pH, and cannot be mixed with other insulins. Lantus was the first clear long-acting insulin.

Some users find that Lantus does not last for a full 24 hours or lasts for longer than 24 hours and works best when divided into two doses twelve hours apart.

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