Question 1

can i die by taking too many antihistamine tablets?

Accepted Answer

Taking lethal over: Dose would do that.  Lethal overdoses of antihistamines are rare. Are you considering taking an overdose of antihistamines? If so, please get help right away. You can use national suicide hotlines 24/7 at 1-800-suicide (1-800-784-2433) or 1-800-273 – talk (1-800-273-8255). If you have accidentally taken too many antihistamines please contact 1-800-222-1222 (poison control hotline). Take care.

Question 2

i know it is not recommended to take more than one antihistamine pill per 24 hours, but some only last ~8 hours. which ones lasts for 24 hrs?

Accepted Answer

Xyzal (levocetirizine) and Clarinex: From experience some of the newer antihistamines such as Xyzal (levocetirizine) and Clarinex seem to be effective for longer time periods. Most antihistamines however peak in effectiveness in the first few hours and start to wear off after 12-15 hours.

Question 3

will out of date antihistamine tablets still work ?

Accepted Answer

Maybe: Medications that have passed the expiration may still work, but the pharmaceutical manufacturer cannot guarantee their effectiveness.   The longer the medication is out of date, the more likely they are less effective.

Question 4

what will happen if you take 80 sleepasil tablets + 5 antihistamines and half a bottle of gin?

Accepted Answer

If you are trying to: kill yourself, GET HELP NOW.  1-877-870-4673.  PLEASE
I am hoping asking a question online is a cry for help and a sign that you have some hope for the future. You can see your doctor, you can go to any emergency room or you can call 911 as well. Your underlying depression can be treated, and the world will look better if you do.

Question 5

hi..i took three antihistamines by mistake when i was told to take only one at night. is this dangerous? each tablet is 120 gms

Accepted Answer

Likely Ok: Antihistamines have a high safety margin although the older antihistamines may have more side effects. It is unusual to have mistakenly taken 3 pills when most medication is based on 1 pill. You will have to be more careful in the future since other medications may not be as forgiving.

Question 6

i'm 17 and took 3 loratadine tablets, 10 mg/ antihistamine in the last 24 hours, are there going to be any issues i should be worried about ?

Accepted Answer

Probably not but...: Long acting anti-histamines should not be used more than one in 24 hours.  Taking more has been associated with heart issues but that is still unlikely to occur.  If you have any chest palpitations you should be evaluated.  For future reference, these medications can take 4 - 6 hours to work.  If you are still not getting relief you can safely add a short acting anti-histamine (Benadryl).

Question 7

what antihistamines work the fastest and are most effective ? with the tablets do you chew them or take with water ?

Accepted Answer

Hard to say: Some antihistamines are more effective in some people then others.You really cannot say that one is better than the other. It's just a matter of trial and error. I would suggest you swallow the pills with water brother then chew them. There used to be a chewable form of Claritin (loratadine) although I do not know if it is available any longer.Some antihistamines will make you more sleepy than others.

Question 8

is there any other antihistamines that have as strong of or stronger anti allergic properties than benadryl (diphenhydramine)?

Accepted Answer

Antihistamines: Yes.  There are a number of them.  Many available only by prescription.  Different ones have different side effects. See your doctor to discuss which would be best for you.

Question 9

what the signification of hci ? in most of medicines say. exemplo: cetirizine hci antihistamine 10 mg tablets

Accepted Answer

Marketing/reality: Basic chemical compounds are known by their complex series components linked in series.  Most people would avoid a drug with a weird name, so the come up with a label that is a blend of  a simple word and a real component. This one has 2 hydrogen and 1 chloride molecule at the end of its official label so it is called cetirizine (simple made up name) + hydrochloride (sounds scientific)

Question 10

is xolair commonly used for chronic physical urticarias? most antihistamines don't work for me. symptoms still strong.

Accepted Answer

No: Xolair isn't commonly used for physical urticaria, waste of time and money, other drug and treatment options,  than antihistamines or xolair, can be used. kindly see a dermatologist / allergist with experience in treating chronic urticaria, good luck

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Doctor answers about:

Strong antihistamine tablets

A member asked:

Can i die by taking too many antihistamine tablets?

A member asked:

I know it is not recommended to take more than one antihistamine pill per 24 hours, but some only last ~8 hours. which ones lasts for 24 hrs?

A member asked:

Will out of date antihistamine tablets still work ?

A member asked:

What will happen if you take 80 sleepasil tablets + 5 antihistamines and half a bottle of gin?

A member asked:

Hi..i took three antihistamines by mistake when i was told to take only one at night. is this dangerous? each tablet is 120 gms

A member asked:

I'm 17 and took 3 loratadine tablets, 10 mg/ antihistamine in the last 24 hours, are there going to be any issues i should be worried about ?

A member asked:

What antihistamines work the fastest and are most effective ? with the tablets do you chew them or take with water ?

A member asked:

Is there any other antihistamines that have as strong of or stronger anti allergic properties than benadryl (diphenhydramine)?

A member asked:

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

A member asked:

Is xolair commonly used for chronic physical urticarias? most antihistamines don't work for me. symptoms still strong.

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