Known interactions between the following drugs: Colestipol, Lipitor

When these drugs are taken at the same time, colestipol may combine with atorvastatin in the stomach and prevent it from being absorbed properly into the body. If this happens, then potentially less atorvastatin would be available for the body to use. This could make atorvastatin less effective. If these drugs are used together, avoid taking atorvastatin within 4 hours after a dose of colestipol. To make this schedule easier to follow, consider taking colestipol before meals and then take atorvastatin in the evening before bedtime. Discuss this potential interaction with your healthcare provider at your next appointment, or sooner if you think you are having problems.