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Am Fam Physician. 2025;112(3):320-321

Author disclosure: No relevant financial relationships.

DrugDosageDose formCost of full course per year*
Donanemab (Kisunla)Initial: Every 4 weeks: 350 mg IV first infusion, 700 mg IV second infusion, 1,050 mg IV third infusion; then 1,400 mg IV once every 4 weeks until amyloid beta plaques are reducedIV administered solution (eg, 350 mg/20 mL normal saline) to a final concentration of 4–10 mg/mL$32,000

Donanemab (Kisunla) is labeled for the treatment of Alzheimer disease in patients with mild cognitive impairment or who are in the mild stage of dementia (eg, have a Mini-Mental State Examination score of 20–28 of 30) with confirmed amyloid beta pathology. Donanemab is a humanized monoclonal antibody that targets and reduces accumulations of amyloid beta plaques, which can be found in patients diagnosed with Alzheimer disease.1

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STEPS new drug reviews cover Safety, Tolerability, Effectiveness, Price, and Simplicity. Each independent review is provided by authors who have no financial association with the drug manufacturer.

This series is coordinated by Allen F. Shaughnessy, PharmD, assistant medical editor.

A collection of STEPS published in AFP is available at https://www.aafp.org/afp/steps.

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