Humalog (Insulin Lispro)

What is a Generic Drug?

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.

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  • Product Details


    HUMALOG (Insulin lispro) is a prescription insulin product. Insulin is used to treat high blood sugar in patients with Type 1 Diabetes Mellitus and Type 2 Diabetes Mellitus.

    The body naturally produces insulin to help regulate natural amounts of blood glucose. Patients with diabetes do not have enough insulin to meet their metabolic needs. The glucose in their bloodstream is unable to transport into cells where it is needed.

    A diabetes patient with too much blood sugar is hyperglycemic. A patient with too low blood sugar is hypoglycemic. Both of these conditions can be harmful. Injectable insulin helps to regulate normal levels of blood sugar.


    Take HUMALOG exactly as directed by your doctor. The dosage is different for every person and must be determined by your doctor.

    HUMALOG insulin is injected under the skin, usually in the belly or other sites.

    Lispro is similar to regular human insulin but is modified to work more quickly. HUMALOG begins working in about 15 minutes.


    The active ingredient in HUMALOG is insulin lispro.


    Some medications may interfere with your ability to tell if you are hypoglycemic. Tell your doctor if you are taking any of the following:

    • Beta-blockers
    • Clonidine
    • Guanethidine
    • Reserpine


    Insulin may cause hypoglycemia when combined with other anti-diabetic medications. Review your entire diabetes regimen and make sure you know the signs and symptoms of low blood sugar when making any changes. Hypoglycemia can be life-threatening.

    Insulin should only be used under medical supervision and while monitoring blood glucose

    Tell your doctor if you have a history of low potassium (hypokalemia).

    Do not mix HUMALOG with other insulins unless directed by your doctor or pharmacist.

    Tell your doctor if you have a history of heart disease, are using a thiazolidinedione, and are taking insulin.

    Side Effects

    Common side effects of HUMALOG include:

    • Allergic reactions
    • Hypoglycemia
    • Injection site reactions
    • Lipodystrophy
    • Pruritus
    • Rash


    1. Humalog [package insert].Indianapolis, IN: Lilly; 2013.
    2. Insulin Lispro. DrugBank. July 23, 2020.

    IMPORTANT NOTE: The above information is intended to increase awareness of health information and does not suggest treatment or diagnosis. This information is not a substitute for individual medical attention and should not be construed to indicate that use of the drug is safe, appropriate, or effective for you. See your health care professional for medical advice and treatment.

    Product Code : 13353

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