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When should I take Lantus?

Medically reviewed by Melisa Puckey, BPharm. Last updated on June 13, 2023.

When is the best time of the day to use Lantus?

Official answer


Lantus can be used any time of day but at the same time every day. You should pick a time of the day that will be convenient and when it will be easiest to remember.

How often should I use Lantus?

  • Lantus should be given once a day.

When should I not take Lantus?

  • You should not use Lantus if you are having a episode of hypoglycemia (low blood sugar levels)
  • You should not use Lantus if you are hypersensitive or allergic to any of the ingredients in Lantus injections.
  • Lantus is not recommended for use in diabetic ketoacidosis.

Lantus (insulin glargine) is a man made form of a long acting insulin that is given by injection to diabetic patients, to lower their high blood sugar levels. Lantus is designed to give a steady level of insulin over 24 hours, even when you are not eating such as between meals and overnight. This helps keep blood glucose levels consistent during the day and at night.

When Lantus is given as an injection, it is slowly absorbed and reaches a steady level, which gives the blood sugar lowering effect that lasts for 24 hours.


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