Afrezza 4U Inhaled Insulin

Afrezza 4U Inhaled Insulin is a rapid-acting inhaled human insulin used to improve blood glucose control in adults with diabetes. It is administered through the mouth using the Afrezza inhaler and is taken at the beginning of a meal. Afrezza provides an alternative to injected mealtime insulin for appropriately selected patients.

Product Information

• Generic Name: Insulin Human Inhalation Powder
• Brand: Afrezza®
• Drug Class: Rapid-Acting Insulin
• Indication: Diabetes Mellitus / Mealtime Blood Glucose Control
• Form: Inhalation Powder
• Strength: 4 Units (4U)
• Route: Oral Inhalation
• Prescription: Yes
• Device: Afrezza Inhaler
• Manufacturer: MannKind Corporation

How It Works

Afrezza contains inhaled human insulin that is rapidly absorbed through the lungs after administration. It helps lower blood glucose by promoting glucose uptake into tissues and reducing glucose production by the liver. It is used around mealtimes as directed by a healthcare professional.

Availability & Ordering

Patients searching for Afrezza 4U, Afrezza 4 Unit Inhaled Insulin, Buy Afrezza Online, Inhaled Insulin, Afrezza Insulin Powder, Rapid-Acting Inhaled Insulin, Mealtime Insulin, Diabetes Medicine, and Afrezza Price USA UK can find prescription Afrezza through licensed suppliers, subject to local prescription and import regulations.

Frequently Asked Questions

What is Afrezza 4U used for?

Afrezza is used to improve blood glucose control in adults with diabetes as a mealtime insulin.

Is Afrezza injected?

No. Afrezza is administered as an inhaled powder using the supplied inhaler device.

What is Afrezza 4U?

Afrezza 4U contains 4 units of insulin per cartridge and is one of the available Afrezza cartridge strengths.

Is Afrezza a rapid-acting insulin?

Yes. Afrezza is an inhaled, rapid-acting human insulin intended for use around mealtimes.

Does Afrezza require a prescription?

Yes. Afrezza is a prescription insulin product and should be used according to a healthcare professional’s instructions.

Last Updated: August 13, 2026 | Medically Reviewed By: Licensed Pharmacist

Medical Disclaimer: This information is provided for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always follow your healthcare professional’s instructions when using insulin.