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A generic drug is a copy of the brand-name drug with the same dosage, safety, strength, quality, consumption method, performance, and intended use. Before generics become available on the market, the generic company must prove it has the same active ingredients as the brand-name drug and works in the same way and in the same amount of time in the body.
The only differences between generics and their brand-name counterparts is that generics are less expensive and may look slightly different (eg. different shape or color), as trademarks laws prevent a generic from looking exactly like the brand-name drug.
Generics are less expensive because generic manufacturers don't have to invest large sums of money to develop a drug. When the brand-name patent expires, generic companies can manufacture a copy of the brand-name and sell it at a substantial discount.
HUMULIN R is a prescription drug given to treat high blood sugar (hyperglycemia) in people with diabetes mellitus. It can treat hyperglycemia in type 1 or type 2 diabetes.
People with diabetes mellitus have abnormal levels of insulin, and HUMULIN R helps to regulate their blood sugar. Blood sugar that is too high can cause organ damage, and blood sugar that is too low can be life-threatening.
Inject HUMULIN R insulin under the skin 30 minutes before meals. Do not skip a meal after taking a dose.
Store unopened vials in the refrigerator. Opened vials can be stored at room temperature for 28 days before discarding.
The active ingredient in HUMULIN R is regular short-acting human insulin.
Insulin does not have any drug interactions with other medications. However, many different drugs can affect people with diabetes mellitus by raising or lowering their blood sugar. Tell your doctor if you are taking any of the following:
Insulin treatment can cause dangerously low blood sugar (hypoglycemia), which can be a medical emergency. Monitor your blood sugar frequently while using insulin.
Tell your doctor if you have a history of low potassium (hypokalemia).
Changes to your diet, meals, medications, and other lifestyle changes may impact the dose of insulin you need.
The most common side effects of HUMULIN R can include: