* Centrum may interfere with the absorption of certain medications, including antibiotics, thyroid medications, and blood thinners. If you are taking any medications, it is important to talk to your doctor or pharmacist before taking Centrum.
* Fish oil may increase the risk of bleeding, especially if you are taking blood thinners, such as warfarin (Coumadin). If you are taking a blood thinner, it is important to talk to your doctor before taking fish oil.
* Centrum and fish oil may interact with other supplements, such as vitamin E, vitamin K, and iron. If you are taking any other supplements, it is important to talk to your doctor or pharmacist to make sure that there are no potential interactions.
It is always important to follow the recommended dosage instructions on the supplement label and to talk to your doctor or pharmacist before taking any new supplements, especially if you have any underlying health conditions or are taking any medications.