 <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]  absorption. Take this medication as prescribed. Do not increase your dose or take this more often without your doctor's approval.The side effects of K-Phos Original Oral: Nausea, vomiting, diarrhea, dizziness, or headache 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. When this medication is first started, there is a chance an old kidney stone will be passed. Tell your doctor right away if you have any serious side effects, including: bone/joint aches, muscle cramps, stomach pain, confusion, fast/irregular heartbeat, unusual weakness, tingling/numbness of the hands/feet, signs of kidney problems (such as change in the amount of urine). A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing. This is not a complete </s>