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Doctor insights on: Reactine Antihistamine

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Can antihistamine cetirizine cause anger?

Can antihistamine cetirizine cause anger?

Possibly: Sedating antihistamines can sometimes have 'agitating' side effects, especially in children. This would not be common with cetirizine, but is possible. ...Read more

Dr. Paul Carter
601 doctors shared insights

Antihistamine (Definition)

Sedating and non-sedating antihistamines prevent and treat allergic reactions, and are ...Read more


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Do all zyrtec (cetirizine) have an antihistamine?

Do all zyrtec (cetirizine) have an antihistamine?

Yes, antihistamine: Zyrtec (cetirizine) *is* an antihistamine. Zyrtec (cetirizine) is an antihistamine used for treating allergy symptoms and itching due to hives. There are no other ingredients in zyrtec; however, zyrtec-d, a separate formulation, has in addition to the antihistamine a decongestant. ...Read more

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What the signification of hci ? In most of medicines say. Exemplo: cetirizine hci antihistamine 10 mg tablets

What the signification of hci ? In most of medicines say. Exemplo: cetirizine hci antihistamine 10 mg tablets

The full name meds: This is a very good question. It gets to the heart of science. In nature all molecules are balanced with acid and base to bring the chemical into homeostasis... Meaning to maintain stability. Medications are no different. For them to maintain stability they must mimic human life and chemistry. ...Read more

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What is better antihistamine Cetirizine or Fexofenadine?

What is better antihistamine Cetirizine or Fexofenadine?

I like Cetirizine: My personal preference is Zyrtec (cetirizine) however both have similar effects. Allegra (fexofenadine) could be considered the least sedating out of all the OTC antihistamines. ...Read more

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Is it safe to take another 24-hour zyrtec (cetirizine) antihistamine if there's still about 8 hours left before the previous one wears off?

Follow dosing: It's best to adhere to the dosing recommended. It would be hard to overdo it with the zyrtec (cetirizine) , the way you are suggesting, but it begs the question- how well does the rx work , if you want more before the proper dosing interval ? I would think you need to talk with your doctor about other options to achieve safe allergy control. Sometimes more than one rx is necessary. ...Read more

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What if I am concerned my hives are caused by an antihistamine in the first place? I.E. Zyrtec and allegra (fexofenadine)

What if I am concerned my hives are caused by an antihistamine in the first place? I.E. Zyrtec and allegra (fexofenadine)

Go to allergy dr: Go to an allergy doctor and get tested. Usually if you take antihistamine and break out more you might suspect a reaction to antihistamine, but you won't know for sure unless it happens every time you take it, or you get an allergy testing. ...Read more

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Dr. John Chiu
542 doctors shared insights

Cetirizine (Definition)

Ceftirizine is the generic name of an antihistamine previously marketed under the ...Read more


Dr. John Chiu
522 doctors shared insights

Zyrtec (Definition)

Zyrtec is a non-sedating antihistamine which is a kind of antihistamine type drug (common ...Read more