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O

orexigenic

Orexigenic agents are appetite stimulants. These can be endogenous hormones (e.g. ghrelin, orexin or neuropeptide Y) or agents administered as drugs; tricyclic antidepressants (TCAs), natural or synthetic cannabinoids, some first-generation antihistamines, and many antipsychotics and steroid hormones all act as orexigenics.

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