Assertion: antihistamine | /r/HasProperty | combined with acetaminophen
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text: Antihistamines may be bought as a single agent or in combination with decongestants like pseudoephedrine or phenylephrine; combined with fever, headache and pain relievers like acetaminophen or ibuprofen; added to cough suppressants like dextromethorphan; or with expectorants like guaifenesin.