Drugs that counteract the effects of a substance in the body called histamine. The body releases histamine, which causes many of the symptoms associated with allergies (sneezing, watery eyes, runny nose), in response to external agents such as pollen.
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Words nearby antihistamines
Example sentences from the Web for antihistamines
Several years ago many such tests were carried out with antihistamines to prevent colds.A Practical Guide to Self-Hypnosis|Melvin Powers