 <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]  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 Renvela Oral: Headache, diarrhea, stomach upset, nausea, vomiting, cough, gas, or constipation may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly. Remember that this medication has been prescribed because your doctor has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects. Tell your doctor right away if you have any serious side effects, including: problems with your dialysis access site, severe constipation/inability to have a bowel movement, signs of stomach/intestinal bleeding or ulcers (such as black/blood </s>