| Following the addition of oral and topical antihistaminic drugs, her skin rashes disappeared. |
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| Promethazine hydrochloride is a phenothiazine derivative used in cough syrups for its antihistaminic, antiemetic, and sedative effects. |
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| Antihistaminic and anticholinergic activity of barberry ruit in the guinea-pig ileum. |
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| Drugs of the antihistaminic and proton pump inhibitor classes can inhibit the production of acid in the stomach, and antacids are used to neutralize existing acid. |
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| The antihistaminic effect of fenugreek may reduce premenstrual symptoms. |
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| The most efficient antihistaminic treatment is provided by hydroxyzine. |
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