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CZ3 has cetrizine
as its main compund.Cetirizine
can cause side effects like dizziness
, reduced alertness ,makes you drowsy , can effect blood physiology.Though it rarely has an effect on kidneys , iit should be used with caution in people with kidney problems.
I advise you not to take these for longer durations.In case you have to , try taking Levoceterizine but not cetrizine , to reduce dosage and side effects , under medical supervision.