 <s>[INST] Always assist with care, respect, and truth. Respond with utmost utility yet securely. Avoid harmful, unethical, prejudiced, or negative content. Ensure replies promote fairness and positivity. [/INST]  body. How to use Sevelamer Hcl Take this medication by mouth as directed by your doctor, usually 3 times daily with meals. Swallow the tablet whole. Do not crush, chew, or split the tablet. The dosage is based on your medical condition, any other medications you take to lower your phosphate levels, and your response to treatment. In children, the dosage is also based on body size. If you are taking the powder form of this medication, check the manufacturer package directions for mixing with water, beverage, or food and taking it within 30 minutes. Follow the directions for the proper amount of water to use for your dose. Stir the mixture well and drink all of it. If the powder settles to the bottom of the cup, stir again right before drinking. You may also mix the powder with a small amount of food or beverage to take as part of a meal. If mixing with food or beverage, do not heat the powder or add to heated foods or liquids. Take this medication regularly in order to get the most benefit from it. Remember to take it 3 times a day with meals, or on the schedule given to you by your doctor.The side effects of Sevelamer HCl Oral: Headache, diarrhea, stomach upset, nausea </s>