6 doctors weighed in:
Is it safe to take 2 10mg zyrtec (cetirizine) a day?
6 doctors weighed in

Dr. Michio Abe
Internal Medicine
4 doctors agree
In brief: Not recommended
The maximum daily dose recommended for zyrtec (cetirizine) is 10mg.
Higher than this dose may cause serious side effects such as liver damage, seizures or low blood pressure. However, in certain situations higher than recommended dose may be warranted under physician supervision. The risks/benefits must be carefully weighed.

In brief: Not recommended
The maximum daily dose recommended for zyrtec (cetirizine) is 10mg.
Higher than this dose may cause serious side effects such as liver damage, seizures or low blood pressure. However, in certain situations higher than recommended dose may be warranted under physician supervision. The risks/benefits must be carefully weighed.
Dr. Michio Abe
Dr. Michio Abe
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Dr. Thomas Byrnes
Family Medicine
In brief: Sedation
That dose of zyrtec is going to be very sedating.
This defeats the purpose of taking zyrtec instead of benadryl (diphenhydramine). That level of sedation will make you a drowsy --> dangerous driver. Have you tried Loratadine or allegra? Do you use Flonase or something like it? Do you regularly flush your nose with a saline/ baking soda solution?

In brief: Sedation
That dose of zyrtec is going to be very sedating.
This defeats the purpose of taking zyrtec instead of benadryl (diphenhydramine). That level of sedation will make you a drowsy --> dangerous driver. Have you tried Loratadine or allegra? Do you use Flonase or something like it? Do you regularly flush your nose with a saline/ baking soda solution?
Dr. Thomas Byrnes
Dr. Thomas Byrnes
Thank
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