 <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] . For the treatment of rheumatoid arthritis, it may take 2 to 3 months before you see any improvement in your condition. For the treatment of Wilson's disease, follow the diet recommended by your doctor to get the most benefit from this medication. Your condition may not improve for 1 to 3 months and may actually get worse when you start this medication. Tell your doctor right away if your condition continues to worsen after a month of treatment. For the treatment of cystinuria, follow the diet recommended by your doctor to get the most benefit from this medication. Drink plenty of water unless your doctor directs you otherwise. Tell your doctor if your condition does not improve or if it worsens.The side effects of Penicillamine Oral: Stomach/abdominal pain, nausea/vomiting, loss of appetite, diarrhea, and decreased sense of taste 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: signs of infection (such as </s>