insulin glargine vs olanzapine

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Side-by-side comparison of insulin glargine and olanzapine. Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.

minor Known Drug Interaction

Drugs That May Decrease the Blood Glucose Lowering Effect of BASAGLAR Drugs: Atypical antipsychotics (e.g., olanzapine and clozapine), corticosteroids, danazol, diuretics, estrogens, glucagon, isoniazid, niacin, oral contraceptives, phenothiazines, progestogens (e.g., in oral contraceptives), protease inhibitors, somatropin, sympathomimetic agents (e.g., albuterol, epinephrine, terbutaline), and thyroid hormones Intervention: Dose increases and increased frequency of glucose monitoring may be required when BASAGLAR is co-administered with these drugs.

Drug Class
insulin glargine Long-Acting Insulin
olanzapine Atypical Antipsychotic
Type
insulin glargine Prescription
olanzapine Prescription
Summary
insulin glargine

Basaglar is a long-acting insulin that helps control blood sugar levels. It is used to treat type 1 and type 2 diabetes.

olanzapine

Olanzapine is a medicine used to treat certain mental disorders. It helps to balance chemicals in the brain to improve mood and behavior.

What It Treats
insulin glargine

Basaglar is used to lower blood sugar in adults and children with type 1 diabetes. It also helps adults with type 2 diabetes manage their blood sugar. However, Basaglar is not for treating diabetic ketoacidosis, a serious condition with high levels of ketones in the blood.

olanzapine

Olanzapine is used to treat schizophrenia in adults and teens (13-17). It also treats manic or mixed episodes of bipolar I disorder in adults and teens (13-17). In adults, it can be used with other medicines to treat bipolar depression.

How It Works
insulin glargine

Basaglar is a long-acting form of insulin. It works by replacing the insulin that your body does not make, or helping your body use insulin better. This helps to lower your blood sugar levels over a longer period.

olanzapine

Olanzapine is an atypical antipsychotic. It works by affecting the levels of certain chemicals in your brain. These chemicals include dopamine and serotonin, which can help improve mood, thinking, and behavior.

Common Side Effects
insulin glargine
  • Low blood sugar (hypoglycemia)
  • Allergic reactions
  • Injection site reactions (redness, swelling, itching)
  • Skin thickening or pits at the injection site
  • Itching
olanzapine
  • Dizziness
  • Weight gain
  • Increased appetite
  • Dry mouth
  • Constipation
FAERS Reports
insulin glargine
  • Blood Glucose Increased 38,214
  • Blood Glucose Decreased 10,314
  • Inappropriate Schedule Of Product Administration 9,798
  • Nausea 9,568
  • Product Storage Error 8,531
olanzapine
  • Weight Increased 6,722
  • Diabetes Mellitus 5,388
  • Drug Interaction 4,048
  • Toxicity To Various Agents 3,966
  • Somnolence 3,839
Serious Warnings
insulin glargine

Never share your Basaglar pen with anyone else, even if you change the needle. Sharing pens can spread blood-borne diseases. Changes to your insulin plan can affect your blood sugar. Make sure a doctor supervises any changes and that you check your blood sugar often. Low blood sugar can be very dangerous and even life-threatening. Watch for symptoms and check your blood sugar often. Low potassium can also be life-threatening. Tell your doctor if you have heart problems or take certain diabetes medicines called thiazolidinediones, as this can lead to heart failure.

olanzapine

Olanzapine can increase the risk of death in older adults with dementia-related psychosis. Olanzapine is not approved to treat this condition. When using olanzapine with fluoxetine, read the Symbyax label for more warnings.

Pregnancy
insulin glargine

Talk to your doctor if you are pregnant or plan to become pregnant. Poorly controlled diabetes during pregnancy can harm both the mother and the baby. Basaglar's effects during pregnancy are not well-studied.

olanzapine

If you take olanzapine during the third trimester of pregnancy, your baby may have withdrawal symptoms after birth. There is a pregnancy registry to monitor outcomes in women who take atypical antipsychotics during pregnancy. Talk to your doctor.

Also Compare, Nearby Drugs

How to Read This insulin glargine vs olanzapine Comparison

insulin glargine is classified in the Long-Acting Insulin drug class, while olanzapine sits within the Atypical Antipsychotic class. Drugs from different classes work through distinct mechanisms, so a head-to-head comparison illustrates trade-offs rather than equivalence. Both drugs are prescription-only, so a licensed provider must authorize use.

Adverse event totals above are pulled from the FDA's Adverse Event Reporting System (FAERS). For these top-ranked reactions alone, insulin glargine has 76,425 submissions while olanzapine has 23,963. Those figures reflect cumulative reporting volume, not per-patient risk, so older, widely dispensed drugs typically look worse on count alone. These two drugs have a known minor interaction flagged in FDA labeling, attributed to olanzapine can reduce the blood-sugar-lowering power of insulin, which may lead to higher blood sugar readings.. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.

A table cannot represent individual circumstances. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This registry does not provide medical, treatment, substitution, or medication-change directions for insulin glargine or olanzapine.

Registry boundary: This comparison displays source-record fields and does not provide individualized medical direction.