Ipratropium HFA Inhaler Contains 200 Puffs
A standard ipratropium bromide (Atrovent) HFA metered-dose inhaler contains 200 actuations per 12.9 gram canister 1.
Key Product Details
The FDA-approved labeling for Atrovent HFA specifies that:
- Each canister provides 200 actuations total
- Each actuation delivers 21 mcg of ipratropium bromide from the valve and 17 mcg from the mouthpiece
- The canister weighs 12.9 grams
- The canister must be discarded after 200 actuations have been used, even if it doesn't feel completely empty 1
Important Clinical Considerations
Priming requirements reduce the usable doses:
- Prime with 2 test sprays before first use
- Re-prime with 2 test sprays if not used for more than 3 days 1
This means the actual number of therapeutic doses available will be slightly less than 200 if priming is needed.
Dosing Context from Guidelines
The typical adult dosing for ipratropium HFA is:
- Maintenance therapy: 2-3 puffs every 4-6 hours 2
- Acute exacerbations: 8 puffs every 20 minutes as needed up to 3 hours 3
At standard maintenance dosing (2 puffs four times daily = 8 puffs/day), a 200-actuation canister would last approximately 25 days before requiring replacement.
Critical safety point: The amount of medication delivered cannot be assured after the labeled 200 actuations, making it essential to track usage and replace the inhaler appropriately 1.