You should not use insulin if you are having an episode of hypoglycemia (low blood sugar).
Before taking this medicine
You should not use Humulin R if you are allergic to insulin, or if you are having an episode of hypoglycemia (low blood sugar).
Humulin R is not approved for use by anyone younger than 2 years old. Humulin R should not be used to treat type 2 diabetes in a child of any age.
To make sure Humulin R is safe for you, tell your doctor if you have ever had:
liver or kidney disease; or
heart failure.
Taking certain oral diabetes medicines while using Humulin R may increase your risk of serious heart problems. Tell your doctor if you also take medicine that contains pioglitazone or rosiglitazone.
Tell your doctor if you are pregnant or breastfeeding.
Follow your doctor's instructions about using Humulin R if you are pregnant or you become pregnant. Controlling diabetes is very important during pregnancy, and having high blood sugar may cause complications in both the mother and the baby.
