Afrezza Is an Inhaled Insulin That Replaces Mealtime Injections for Adults With Diabetes

If you've been prescribed Afrezza — or you're curious whether inhaled insulin might work for you — this guide covers everything you need to know. We'll walk through what Afrezza is, how it's used, dosing details, who should and shouldn't take it, and what it costs in 2026.

What Is Afrezza?

Afrezza (insulin human inhalation powder) is an ultra rapid-acting inhaled insulin approved by the FDA for adults with type 1 and type 2 diabetes. Instead of injecting mealtime insulin with a needle, you inhale it through a small, pocket-sized device.

Here are the basics:

• Brand name: Afrezza
• Generic name: Insulin human inhalation powder
• Drug class: Ultra rapid-acting inhaled insulin
• Manufacturer: MannKind Corporation
• FDA approved: Yes — for adults with type 1 diabetes (must be used with long-acting insulin) and type 2 diabetes
• Controlled substance: No
• Generic available: No

Afrezza uses Technosphere technology — the insulin is loaded onto tiny microparticles that dissolve rapidly in the deep lung, delivering insulin into your bloodstream much faster than traditional injectable rapid-acting insulins. For more on how this works, see How Does Afrezza Work?

What Is Afrezza Used For?

Afrezza is FDA-approved for two uses:

1. Type 1 diabetes — As a mealtime insulin used alongside a long-acting basal insulin (like Lantus, Basaglar, or Tresiba). Afrezza cannot replace basal insulin in type 1 diabetes.
2. Type 2 diabetes — As a mealtime insulin to improve blood sugar control. It can be used alone or with other diabetes medications, including basal insulin and oral medications like Metformin.

Some patients and doctors also use Afrezza off-label for correction doses — quick touch-up doses to bring down blood sugar spikes between meals. Its ultra-fast onset and short duration make it well-suited for this purpose.

How Is Afrezza Taken?

Afrezza is inhaled at the beginning of each meal using the Afrezza inhaler. Here's the step-by-step:

1. Let the cartridge warm up — Cartridges must be at room temperature for at least 10 minutes before use (if stored in the refrigerator).
2. Load the cartridge — Place the cartridge flat-side down into the inhaler and close the mouthpiece until you hear a snap.
3. Exhale normally — Breathe out away from the inhaler.
4. Inhale deeply — Place your lips around the mouthpiece and take a deep, steady breath in. Hold your breath for a moment.
5. Replace the inhaler every 15 days. Do not shake or turn the inhaler upside down after loading a cartridge.

Afrezza comes in three cartridge strengths:

• 4 units (blue cartridge)
• 8 units (green cartridge)
• 12 units (yellow cartridge)

If your dose is higher than 12 units, you'll use multiple cartridges per meal. Your doctor will determine the right dose based on your blood sugar levels, current insulin use, and individual needs.

Who Should Not Take Afrezza?

Afrezza is not for everyone. It is contraindicated (meaning you should not use it) if you have:

• Chronic lung disease — Afrezza carries an FDA boxed warning for the risk of acute bronchospasm in patients with asthma or COPD. If you have any chronic lung condition, Afrezza is not safe for you.
• Active hypoglycemia — Do not take Afrezza during a low blood sugar episode.
• Allergy to insulin or Afrezza ingredients — If you've had a hypersensitivity reaction to regular human insulin or any of the excipients in Afrezza.

Afrezza is also not recommended for:

• Current smokers or people who recently quit smoking
• Pregnant or breastfeeding women (not adequately studied)
• Children under 18 (not approved for pediatric use)

A spirometry test (lung function test) is required before starting Afrezza, again at 6 months, and annually. Learn more about these requirements in our side effects guide.

How Much Does Afrezza Cost?

Afrezza is a brand-name medication with no generic available, so cost can be a concern. Here's what you can expect in 2026:

• Cash price: $435–$610 per box of 90 cartridges at retail pharmacies without insurance
• With commercial insurance: Copays vary by plan. Many plans cover Afrezza but may require prior authorization. It's typically placed on a non-preferred brand or specialty tier.
• Medicare Part D: Under the Inflation Reduction Act, insulin costs are capped at $35/month for Medicare patients. Afrezza qualifies, though prior authorization may be required.
• Afrezza Savings Card: Commercially insured patients may pay as little as $35 per fill, with maximum savings of $2,000 per year.
• Patient Direct Program: Cash-paying patients can get Afrezza for $99 per box (90 cartridges) through Eagle Pharmacy, up to 3 boxes per month.
• Patient assistance: MannKind offers a program for eligible uninsured or underinsured patients. Call AfrezzaAssist at 1-844-323-7399.

For a complete breakdown of savings options, see our guide: How to Save Money on Afrezza.

Final Thoughts

Afrezza offers something no other insulin on the market does: a needle-free, inhaled option for mealtime blood sugar control. It works faster than traditional rapid-acting insulins, wears off sooner, and fits in your pocket. For the right patient — someone without chronic lung disease who wants to avoid injections — it can be a game-changer.

The trade-offs are real: you'll need regular lung function tests, it's not available at every pharmacy, and the cost without insurance is significant. But with manufacturer savings programs, the $99 Patient Direct option, and Medicare's $35/month insulin cap, there are paths to making it affordable.

If you're ready to try Afrezza, start by finding a doctor who prescribes it, then use Medfinder to locate a pharmacy with stock.