Lantus (Insulin Glargine) Important Information, Before Taking and Side Effects

6. The following side effects occurring during the insulin glargine intake do not require any treatment or medical attention, they will disappear after you adapt to the medicine. If any of them bother you or continue, apply to your doctor: fever, runny/stuffy nose, sore throat, swelling/redness/itching/pain/skin depression/thickening of the skin at the injection site.