Do Antihistamines causes sleepiness? ( I know I spelled that wrong...)?

Answer:
Yes, most do (example Benadryl) unless the instructions say it's a non- drowsy formula.

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most of them do. box will say if it does or doesn't

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yes. Some have been modified by the drug companies to have day and night forms in order not to result in sedation if taken during the day

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yes they can depends on what ones you get., check with your chemist because you can get one witch don't cause sleepiness.

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It depends on what kind - but usually, yes.

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Yes , like many other allopathic medicines the negatives of a drug are used as a positive in another sense its is what gives the limited Pharmacopoeia its varied applicationAnti histamines are use as a sleeping drug in larger dosages

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Some antihistamines(not all) cause sleepiness in some people(not all). Everyone is different. I haven't found one yet that makes me sleepy. I am an asthmatic with multiple environmental allergies.

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Some do. I take a prescription antihistamine and it makes me sleepy.

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Some do for some people. I take generic Zyrtec, Cetirizine
from http://www.locostcanada.com and have had great results, its cheap and doesnt make me sleepy.

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Some, such as Benedryl, definitely cause sleepiness.
The newer ones, such as Claritin and other prescription ones are "non-drowsy", but you have to see how you react to it. Since everyone's body reacts differently to medications, it is important to take a few doses and based on that, decide if is non-drowsy for you.

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