Moderate. These medicines may cause some risk when taken together. Contact your healthcare professional (e.g. doctor or pharmacist) for more information.
How the interaction occurs:
When these two medicines are taken together, your body may not process theophyllines properly.
What might happen:
The blood level of your theophylline may decrease and cause breathing problems.
What you should do about this interaction:
If your doctor prescribes these two medicines together, you may need to check your theophylline level more often. If you experience problems with your breathing or other effects, contact your doctor. It may be necessary to adjust the dose of your medicine.Your healthcare professionals (e.g. doctor or pharmacist) may already be aware of this drug interaction and may be monitoring you for it. Do not start, stop, or change the dosage of any medicine before checking with them first.
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