Zyrtec-D 12 Hour Support Group
Join the 'Zyrtec-D 12 Hour' group to help and get support from people like you.
Latest Questions
Is there a 24 hour Zyertec-D?
The pharmacist told me there is only a 12 hour, I discarded the original packing, but remember it being a 24 hour tablet, could this be the case? Lot ...
