Can I use Demerol if I am taking antihistamines?

Talk to your doctor before taking the prescription pain medication Demerol (meperidine) if you're also taking an antihistamine to treat hay fever or allergies. Some antihistamines contain compounds called phenothiazines, which may increase the risk of severe side effects such as slowed breathing when taken with Demerol. Your doctor will want to be careful about your dosage and how often you take Demerol if you're also using an antihistamine.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.