Zyrtec

What is Zyrtec?

Cetirizine (trade names Zyrtec, Reactine) is a second-generation antihistamine used in the treatment of hay fever, allergies, angioedema, and urticaria. It is a major metabolite of hydroxyzine, and a racemic selective H1 receptor antagonist.

Second-generation antihistamines like cetirizine are less able to cross the blood-brain barrier and therefore have diminished effects on the central nervous system compared to first-generation drugs: for instance they are less likely to induce drowsiness or to interfere with memory formation.

Questions and answers on "Zyrtec"

I have an insect bite that is very itchy and very swollen. I have taken 10 mg tablet of Zyrtec 12 hours ago. The itchy ness has increased. I have...

doctor1 MD

Hello.Cetirizine can be taken twice a day for treating your itchy.It is also advisable to apply Hydrocortisone cream twice a day and local ice...

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Two nights ago while i was sleeping i felt this rash forming on my right arm , i thought but maybe it was a spider bite reaction but i am not sure....

doctor1 MD

Hi,
Thanks for writing in.
The rash you are describing can be herpes zoster,insect bite contact dermatitis etc.
Keep the area clean and dry.You can...

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Recent questions on  Zyrtec

doctor1 MD

Hi, for the last 3 or 4 days i have been very gassy with sharp abdominal pains below my belly button and on both sides. But the thing that is...

doctor1 MD

Hello, My husband is suffering from allergy symptoms; itchy throat and runny nose, he tried zyrtec (2HCL 10 ml) for 5 days plus antibiotics and...

doctor1 MD

Yes about two days ago I encountered a red spot on my finger and now two days into it, my right palm is completely cOvered with red spots and they...

doctor1 MD

My 49 year old wife has a small (approx. 1/4") sore reddish brown sore rash (No Lumps) on her chest just below her collar bone. She has had this...

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