An inhaler is a medical device designed to deliver medication directly to the lungs, aiding in the management of various respiratory conditions. To ensure that each use provides the intended amount of medication, a process called “priming” is necessary. This important procedure prepares the inhaler for effective delivery, helping to guarantee the correct dose reaches your airways.
Understanding Priming
Priming an inhaler is a preparatory step that ensures the device is ready to dispense medication accurately. This process clears any air or inactive propellant that may have accumulated in the nozzle, preventing the initial sprays from being ineffective. When an inhaler is not primed, the first few actuations might release only propellant, leading to an insufficient dose of medication. Priming is required when an inhaler is new and being used for the first time. It is also necessary if the inhaler has not been used for a certain period, often ranging from several days to two weeks. Additionally, if the inhaler has been dropped, re-priming is recommended.
Step-by-Step Priming Instructions
Priming a metered-dose inhaler (MDI) involves a few steps to ensure proper medication delivery. Remove the mouthpiece cap from the inhaler and shake the inhaler for at least five seconds to mix the medication and propellant. Hold the inhaler upright, positioning it away from your face and others. Press down firmly on the canister to release a spray into the air.
The number of test sprays required can vary depending on the specific inhaler product. For a new inhaler, common recommendations range from two to four test sprays. If the inhaler has not been used for a period or has been dropped, fewer sprays, often two, are sufficient for re-priming. It is important to shake the inhaler well before each test spray. Some inhalers include a dose counter, which will decrement with each prime spray.
After Priming: What to Know
After priming, you can confirm your inhaler is ready by observing a consistent, fine mist with each spray. This visible mist indicates that the medication is being properly dispensed from the device. If the inhaler does not spray, or if the spray appears weak or inconsistent, it may require additional priming.
If issues persist after re-priming, check the expiration date on the inhaler, as expired medication may not perform as expected. If problems persist, consulting with a pharmacist or healthcare provider is recommended. Proper storage and regular use of your inhaler can help minimize the need for frequent re-priming.