You should not use  Questran if you have a blockage in your stomach or intestines.
Wait at least 4 to 6 hours after taking Questran before you take any other medications.
Before taking this medicine
You should not use Questran if you are allergic to it, or if you have:
a blockage in your digestive tract (stomach or intestines).
To make sure Questran is safe for you, tell your doctor if you have:
chronic constipation;
a thyroid disorder;
diabetes;
kidney disease;
liver disease; or
coronary artery disease (clogged arteries).
This medicine may contain phenylalanine. Talk to your doctor before using Questran if you have phenylketonuria (PKU).
Taking Questran can make it harder for your body to absorb certain vitamins. Your doctor may recommend you take a vitamin supplement.
You may have an even greater need for vitamin supplements during pregnancy or while you are breast-feeding a baby. Follow your doctor's instructions about taking vitamin supplements during treatment with Questran.
It is not known whether this medicine will harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant.
