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levocetirizine exactly how long before it leaves your system

A 42-year-old female asked:
Dr. Nayla Mumneh
28 years experience Allergy and Immunology
Allergies: Thy can be taken safely long term for treatment of allergies.
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A 48-year-old member asked:
Dr. Steven Machtinger
43 years experience Allergy and Immunology
Up to 24 hours: But for most 8 hours. With continued daily use you should feel less drowsy each day. The problem is that antihistamines that cause sedation also slow ... Read More
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A 26-year-old male asked:
Dr. Deborah Ungerleider
35 years experience Pediatrics
See below.: Flonase is usually taken once per day, unless your doctor prescribing it has told you otherwise. Also, both Xyzal (levocetirizine) and Zyrtec are long ... Read More
A 33-year-old male asked:
Dr. Al Hegab
Dr. Al Hegab answered
39 years experience Allergy and Immunology
Not really: but you need to keep the follow up with your doctor, both drugs aren't known for the side effects you noted, Singular may cause liver problems, but no ... Read More
A 47-year-old member asked:
Dr. John Overholt
25 years experience Allergy and Immunology
Xyzal (levocetirizine): Levocetirizne is the active, l-isomer of cetirizine. When you take plain cetirizine, 50% is levocetirizine, so there is 5mg of levocetirizine in 10mg ... Read More
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A 37-year-old member asked:
Dr. Al Hegab
Dr. Al Hegab answered
39 years experience Allergy and Immunology
Call poison control: Center, or go to ER for evaluation and possibly giving you activated charcoal, it all depends on how much you ingested, other medicines you are on, yo ... Read More
A 38-year-old member asked:
Dr. Nayla Mumneh
28 years experience Allergy and Immunology
Zyrtec (cetirizine): May take 3-5 days.
A 45-year-old member asked:
Dr. Michael Zacharisen
32 years experience Allergy and Immunology
Allergy treatment: Levocetirizine is the optical isomer of Cetirizine (zyrtec) which is an antihistamine. Levocetirizine is marketted as xyzal (levocetirizine). This a ... Read More
A 44-year-old member asked:
Dr. Heidi Fowler
24 years experience Psychiatry
Please don't.: If you are having thoughts about killing yourself, get seen at the nearest emergency room now. Have a friend or relative drive you or call 911 for e ... Read More

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