You may experience more intense possible side effects.
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.
Overdose symptoms may include feeling restless or nervous, and then feeling drowsy.
- Zyrtec Information for Consumers
- Zyrtec Information for Healthcare Professionals (includes dosage details)
- Side Effects of Zyrtec (detailed)
Search for questions
Still looking for answers? Try searching for what you seek or ask your own question.
Updated 24 Aug 2009 • 1 answer
Zyrtec-D 12 Hour - I took a 24 hour regular zyrtec at 10:30pm last night. Can I now at 8:30 am take?
Updated 13 Oct 2009 • 1 answer
Updated 3 Mar 2012 • 1 answer
I purchased zyrtec d 12 hour allergy medicine 9 days ago isvit too soon to purchase oneagsin Im not?
Updated 29 Sep 2015 • 1 answer
Updated 5 Dec 2015 • 2 answers