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Re: How to know when metered-inhaler is 'empty'?
From: Ted_Espamless@telus.net (Ted Edwards)
no.top.post@gmail.com wrote:
These days asthma treatment commonly uses 2 different inhaled medications:
1. a long-term 'preventer' eg. Beclate;
2. a short-term 'reliever'.
The reliever normally gives immediate symptoms.
So you could know if your inhaler was just 'blowing air' because of the
medication being used up.
But the 'preventer' gives no immediate signs.
So you can't know if the med-contents is depleted.
Or is the concentration of medication in the expelling-gas constant;
so that while the gas still comes, there's medication delivered.
And you only discard it once the gas-expulsion is 'too' weak ?
My 200 puff (rated) rescue inhaler has no indication of the number of puffs taken. So, I cut off a piece of sticky mailing label, stick it on the inhaler and mark each usage using the old method of four vertical lines and a diagonal line through to give easily countable blocks of five.
Ted
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