Why might iron interact with lipitor?

Why might iron interact with lipitor?

Iron supplements can bind to atorvastatin in the digestive tract, reducing how much of the drug gets absorbed into the bloodstream. This binding happens when both substances are taken together, especially if iron is consumed at the same time or near the same time as Lipitor.

How does iron interfere with atorvastatin absorption?

Iron ions bind to the open lactone ring of atorvastatin. The resulting complex stays in the gut and does not cross the intestinal wall. Studies show this complexation reduces bioavailability by 20-30% when iron and atorvastatin are taken together.

Why does timing matter when taking iron and Lipitor?

Taking iron two hours before or four hours after Lipitor allows most of the statin to absorb before iron arrives. This separation keeps the binding from发生在发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生发生0