Depends on usage: Ventolin comes with a dose counter & in 200 or 60 puff sizes. Counter reads 204 or 64 when you open it first, as the extra 4 puffs are for priming the inhaler before initial use. Do not use it past expiration date, and get your refill when there are less than 20 puffs left on your current inhaler to ensure that you are not waiting until the last minute or risk running out when you need it most.
Answered 3/5/2017
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