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will Zyrtec keep me alert if I take it in the morning

A 37-year-old female asked:
Dr. Tipu Sultan
Specializes in Allergy
No: Max recommended dose is 10mg/24 hrs why do you need Zyrtec (cetirizine) at all? We propose to treat the cause of allergy so that you don't need to dep ... Read More
1
1 thank

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A female asked:
Dr. Lori Lange
Specializes in Family Medicine
Not the Standard: Hi, Not really Zyrtec tablets and Claritin are usually once a day meds. They are 2 different antihistamines. Claritin does come in a 12 hour form. S ... Read More
A 38-year-old female asked:
Dr. Nayla Mumneh
28 years experience Allergy and Immunology
See your doctor: This is a high dose of antihistamines and should be best directed by an allergist. Sometimes the high doses are mandated to treat certain conditions, ... Read More
3
3 thanks
A 28-year-old female asked:
Dr. Holly Maes
35 years experience Pediatrics
No additional benef: Since both of these meds work in very similar ways, there is likely to be very little additional benefit from using both, and much more likely to have ... Read More
2
2 thanks
A male asked:
Dr. Kristin Sokol
11 years experience Allergy and Immunology
YES: Yes, taking 2 antihistamines within a 24 hour period will not cause harm. It might make you more thirsty than usual, so stay hydrated, especially if y ... Read More
3
3 thanks
A 37-year-old member asked:
Dr. Thomas Byrnes
28 years experience Family Medicine
Sedation: That dose of zyrtec is going to be very sedating. This defeats the purpose of taking zyrtec instead of benadryl (diphenhydramine). That level of sed ... Read More
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5 thanks
A female asked:
Dr. Barbara Stark Baxter
41 years experience Allergy and Immunology
More zyrtec (cetirizine) for nose: zyrtec (cetirizine) can be taken safely more than the package states . It can cause some drowsiness in about 13% of people; that's why the low dose o ... Read More
A 35-year-old female asked:
Dr. Michelle Zetoony
17 years experience Sleep Medicine
Yes: First depends on the dose and age but yes, zyrtec is a 24 hour medication and Benadryl (diphenhydramine) is a 6-8 hour med. Routinely this should not ... Read More
A member asked:
Dr. Rifat Naghmi
45 years experience Internal Medicine
Allegra and Zyrtec: Both have the same action. There is no point in taking them on the same day. You may alternate as the action lasts for 24 hours for 180 mg of Allegra ... Read More
A 23-year-old male asked:
Dr. John Chiu
Dr. John Chiu answered
56 years experience Allergy and Immunology
Ok: Since you are taking hydroxyzine at night, it is fine as long as you are not working a nightshift since this may make you drowsy. Zyrtec is simply a ... Read More
2
2 thanks

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