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What other drugs will affect theophylline?

Before taking theophylline, tell your doctor if you are taking any of the following medications, so you can be sure to avoid negative drug interactions: some antibiotics, including ciprofloxacin (Cipro), tetracycline (Sumycin), azithromycin (Zithromax), and clarithromycin (Biaxin); certain anti-seizure medicines, including carbamazepine (Tegretol) and phenytoin (Dilantin); oral contraceptives; lithium (Eskalith, Lithobid); and propranolol (Inderal).

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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.