Coumarin Anticoagulants/Penicillinase Resistant Penicillins Interactions

This information is generalized and not intended as specific medical advice. Consult your healthcare professional before taking or discontinuing any drug or commencing any course of treatment.

Medical warning:

Serious. These medicines may interact and cause very harmful effects. Contact your healthcare professional (e.g. doctor or pharmacist) for more information.

How the interaction occurs:

The cause of the interaction is not known. When these two medicines are taken together, your body may process your blood thinner more quickly.

What might happen:

The effect of your blood thinner may decrease.

What you should do about this interaction:

Contact your healthcare professionals (e.g. doctor or pharmacist) about taking these drugs together. If your doctor prescribes these drugs together, you may need to check your bleeding times more often.Your healthcare professionals may already be aware of this interaction and may be monitoring you for it. Do not start, stop, or change the dosage of any medicine before checking with them first.

View Reference
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