Inhaler prescribed only for asthma or COPD? Why also given in other conditions (off-label)?

Can inhalers be used only for asthma or COPD? Why would your doctor sometimes prescribe an inhaler for another condition? I give an overview of off label inhaler prescribing in relatively simple terms.
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Disclaimers:
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For all viewers/listeners:
The information presented here or in other videos and posts on this channel is not medical advice. These materials reflect general medical knowledge which may not apply to your individual case. If you have health concerns, please see your own doctor or other healthcare provider without delay.
For medical professionals:
You must use your professional judgement when treating your patients. The information presented in this and other videos/posts on this channel is for general medical education only. It may not apply to all patients or clinical scenarios.
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