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Which of these is an example of unintentional medication misuse?

A The patient uses his rescue asthma inhaler multiple times per day when the drug is only indicated for emergent shortness of breath.

In the case of an asthma inhaler, perhaps the patient's asthma is undertreated and he is therefore experiencing shortness of breath more than expected. He is not necessarily dependent on the medication, but a referral to a prescriber would be appropriate so the necessary control medications can be ordered. On the other hand, when a patient intentionally continues drug therapy following discontinuation, uses another person's medications, or takes a medication with addiction potential more often than prescribed, it may indicate that the patient is dependent on the medication and/or requires a larger dose than prescribed; this is considered intentional misuse.