A member asked:

Equivalent dose of perphenazine 8mg tid to haloperidol.because of somnolence &weight gain.

A doctor has provided 1 answer

Ask pharmacist: An answer to a question like this is likely not going to be precise since your physician will want to take many things into consideration before making such a switch. It would be best to have the pharmacist contact the physician in order to carry out this particular substitution of drugs.

Answered 4/14/2014

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