An allergy to WelChol, colesevelam hydrochloride, or any of the inactive components used in making WelChol. Your healthcare provider or pharmacist has a list of the inactive ingredients.
There are a number of people who should not take WelChol. There are also several WelChol precautions and warnings to be aware of before starting the drug or before beginning new medicines that may affect WelChol. It is possible that not all precautions and warnings were discussed in this article, so ask your healthcare provider or pharmacist about safety precautions that may apply to you.