You should not take  sevelamer if you have a bowel obstruction.
Before taking this medicine
You should not take sevelamer if you are allergic to it, or if you have a bowel obstruction.
To make sure sevelamer is safe for you, tell your doctor if you have:
trouble swallowing;
severe constipation;
a blockage in your intestines;
slow digestion;
a stomach or intestinal disorder; or
if you have recently had stomach or intestinal surgery.
It is not known whether this medicine will harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant. Your dose needs may be different during pregnancy.
Taking sevelamer while you are pregnant can lower your blood levels of certain vitamins or folic acid. Follow your doctor's instructions about taking vitamins or mineral supplements during pregnancy.
Because sevelamer is not absorbed into the bloodstream, it is not expected to be harmful to a nursing baby.
Sevelamer is not approved for use by anyone younger than 6 years old.
How should I take sevelamer?
Follow all directions on your prescription label. Your doctor may occasionally change your dose to make sure you get the best results. Do not use  sevelamer in larger or smaller amounts or for longer than recommended.
Take sevelamer with meals.
Sevelamer powder must be dissolved in water before you take it. The 0.8-gram packet should be mixed with at least 1 ounce (2 tablespoons) of water. The 2.4-gram packet should be mixed with at least 2 ounces (4 tablespoons) of water.
Stir the powder in water until it is completely dissolved. Stir and drink this mixture right away. To get the entire dose, add a little more water to the same glass, swirl gently and drink right away.
While using sevelamer, you may need frequent blood tests.
Call your doctor if you have have trouble swallowing the tablet, or if it feels like it gets stuck in your esophagus after you swallow it.
Sevelamer may be only part of a complete program of treatment that also includes a special diet. It is very important to follow the diet plan created for you by your doctor or nutrition counselor. You should become very familiar with the list of foods you must eat or avoid to help control your condition.
Store at room temperature away from moisture and heat.
What happens if I miss a dose?
Take the missed dose as soon as you remember. Be sure to take the missed dose with food. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.
What happens if I overdose?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.
