Dose of Zyrtec is 5 or 10 mg once in a day. You have taken two tablets of the this medicine and a total of 20 mg in one day. This dose is not overdose and will not hurt you. Overdose is 150 mg in a day. Higher doses of this medicine will not give you quick relief. It can cause some side effects.
Is It Bad To Take Two 10mg Zyrtec Tablets At Once Or A Couple Hours Apart? It Says 1 Every 24hrs But I Take Them To Help Me With My Hives And I Took One Around 7 And Then Around 9 My Hives Started Acting Up So I Took Another Around 9 30. Is That Ok?
When I had hives really badly I took zyrtec along with an acid controller (pepcid ac, or just a generic), 1 of each a day. I'm not sure why the acid controller helps but that is what urgent care suggested I do. Additionally, rubbing your hives down with ice helps calm the reaction.