
Brand-name Zyrtec is made by McNeil Consumer Healthcare. Generic versions are made by various manufacturers.

Zyrtec belongs to a group of medications known as non-sedating antihistamines, which means it is less likely to cause drowsiness, although people can still experience this side effect when taking the drug.

If you forget to take your Zyrtec as scheduled, take your missed dose as soon as you remember. If it is almost time for your next dose, skip the missed dose and continue with your regular schedule. Do not take a double dose.

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