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S-521 Pill: Phenergan Or Cetirizine

Updated November 29, 2019
Kelly Says:
Fri, November 29, 2019

So I was given this pill marked "S-521" by a family member and was under the impression it was Promethazine (Phenergan) but when I looked it up it showed up as Cetirizine?! So is it not for nausea? Just a little confused that's all.

1 Reply

1
VerFree Says:
Fri, November 29, 2019

Yes, that is correct, is contains 10mgs of Cetirizine. NDC: 16714-0271

S 521 white tablet

Since it is an antihistamine, it might help with nausea, as most of them do, but this one is not specifically used to treat/prevent nausea.

The FDA lists its typical side effects as possibly including nausea, dizziness, dry mouth, and drowsiness.

Inactive ingredients may include:

Corn Starch
Lactose Monohydrate
Povidone K29/32
Magnesium Stearate

Is there anything else I can help with?

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