Medications and Drugs
Brand Names: Humulin R, Novolin R, Novolin R Innolet, Novolin R PenFill, ReliOn/Novolin R
Generic Name: insulin regular (Pronunciation: IN soo lin REG yoo lar)
What is insulin regular (Humulin R, Novolin R, Novolin R Innolet, Novolin R PenFill, ReliOn/Novolin R)?
Insulin is a hormone that is produced in the body. It works by lowering levels of glucose (sugar) in the blood. Insulin regular is a short-acting form of insulin.
Insulin regular is used to treat diabetes.
Insulin regular may also be used for other purposes not listed in this medication guide.
What are the possible side effects of insulin regular (Humulin R, Novolin R, Novolin R Innolet, Novolin R PenFill, ReliOn/Novolin R)?
Get emergency medical help if you have any of these signs of insulin allergy: itching skin rash over the entire body, wheezing, trouble breathing, fast heart rate, sweating, or feeling like you might pass out.
Hypoglycemia, or low blood sugar, is the most common side effect of insulin. Symptoms include headache, hunger, weakness, sweating, tremors, irritability, trouble concentrating, rapid breathing, fast heartbeat, fainting, or seizure (severe hypoglycemia can be fatal). Carry hard candy or glucose tablets with you in case you have low blood sugar.
Tell your doctor if you have itching, swelling, redness, or thickening of the skin where you inject insulin.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
What is the most important information I should know about insulin regular (Humulin R, Novolin R, Novolin R Innolet, Novolin R PenFill, ReliOn/Novolin R)?
Take care not to let your blood sugar get too low. Low blood sugar (hypoglycemia) can occur if you skip a meal, exercise too long, drink alcohol, or are under stress. Symptoms include headache, hunger, weakness, sweating, tremors, irritability, or trouble concentrating. Carry hard candy or glucose tablets with you in case you have low blood sugar. Other sugar sources include orange juice and milk. Be sure your family and close friends know how to help you in an emergency.
Also watch for signs of blood sugar that is too high (hyperglycemia). These symptoms include increased thirst, increased urination, hunger, dry mouth, fruity breath odor, drowsiness, dry skin, blurred vision, and weight loss. Your blood sugar will need to be checked often, and you may need to adjust your insulin dose.
Never share an injection pen or cartridge with another person. Sharing injection pens or cartridges can allow disease such as hepatitis or HIV to pass from one person to another.
Insulin is only part of a complete program of treatment that may also include diet, exercise, weight control, foot care, eye care, dental care, and testing your blood sugar. Follow your diet, medication, and exercise routines very closely. Changing any of these factors can affect your blood sugar levels.
Do not change the brand of insulin or syringe you are using without first talking to your doctor or pharmacist. Some brands of insulin regular and syringes are interchangeable, while others are not. Your doctor and/or pharmacist know which brands can be substituted for one another.
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
Need help identifying pills and medications?
Find tips and advances in treatment.