Sometimes it is not safe to use certain medications at the same time. Some drugs can affect your blood levels of other drugs you take. Ask a doctor or pharmacist about safely using medications together.
Loperamide can cause a serious heart problem with high doses.
Many drugs can affect loperamide. This includes prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible interactions are listed here. Tell your doctor about all your current medicines and any medicine you start or stop using.
 Imodium A-D drug interactions (more detail)
