Take the missed dose as soon as you remember. If it is almost time for your next dose, wait until then to take the medicine and skip the missed dose. Do not take extra medicine to make up the missed dose.
Take the missed dose as soon as you remember. If it is almost time for your next dose, wait until then to take the medicine and skip the missed dose. Do not take extra medicine to make up the missed dose.
DRUG INTERACTIONS: Cetirizine should be taken only in doses prescribed. Increasing the dose can be dangerous. When taking cetirizine with theophylline the dose of theophylline may need to be reduced. Cetirizine occasionally can cause sleepiness . Cetirizine can be taken with erythromycin or ketaconazole without the increased risk of heart irregularities common to other non-sedating antihistamines. Cetirizine also can be used to treat children.
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