Does taking lipitor after snacks affect absorption?

Does eating snacks with Lipitor change how much drug gets into your system?

Taking Lipitor with food does not reduce its absorption. Studies show that taking it with a high-fat meal increases blood levels of atorvastatin by 25 percent compared to taking it without food. The official prescribing information allows taking the drug with or without food.

What happens if you take esomeprazole together with Lipitor?

Esomeprazole reduces stomach acid and therefore does not interfere with atorvastatin absorption. The two drugs can be taken together without concern for pharmacokinetic interactions. Clinical studies and FDA labeling confirm no significant drug-drug interaction between them.

Why are companies challenging this patent?

Pfizer's atorvastatin patent protection ended in 2011. Since then, multiple generic manufacturers have entered the market and competed on price. No active litigation remains over the core compound itself.