Our expert says:
There are arious types of psychotic illness, with different treatments and outlooks. I've been happy with the results I've seen from Risperidone in a number of cases. Promethezine is a rather older anti-psychotic drug not as widely used these days, but might be considered depending on the precise diagnosis and course of the illness. These older drugs do indeed tend to have more marked side-effects than the newer ones, but we also differ individually quite widely as to how sensitive we are to different side-effects of particular drugs.
Maybe if you post a second new posting, mentioning the particular nature of the bad reaction she experienced, it'd be easier to answer. And it may depend on the dose of the promethazine, and how long she was taking it. Probably the commonest range of side0effects of such drugs are abnormal movements, like trembling and shakes, but ehre are various possibilities.
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