1 doctor weighed in:

Is it possiable for ur body to become immune against promethazine. I am 14 weeks pregnant n it prescribe by my doc. It help for a while but not it not?

1 doctor weighed in
Dr. Gregory Hines
Family Medicine

In brief: Tolerance

Phenergan (promethazine) should not be used continuously, as you could develop tolerance to it.
It should only be used for extremes of morning sickness, and only if Reglan does not work, as it is generally considered safer.

In brief: Tolerance

Phenergan (promethazine) should not be used continuously, as you could develop tolerance to it.
It should only be used for extremes of morning sickness, and only if Reglan does not work, as it is generally considered safer.
Dr. Gregory Hines
Dr. Gregory Hines
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