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What non-prescription drugs can be dangerous with theophylline?

Theophylline may interact with some medicines. Tell your doctor what drugs you take. This includes prescriptions, over-the-counter drugs Theophylline may interact with some medicines. Tell your doctor what drugs you take. This includes prescriptions, over-the-counter drugs and natural supplements. The medicines that may cause problems include:   
  • cimetidine and maybe ranitidine and famotidine
  • lansoprazole
  • caffeine
  • pseudephedrine
  • St John's Wort
  • echinacea                                                                                                                                                                                                                                                       Ask your doctor or pharmacist about other drugs to avoid.

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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.