 <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]  and benefits. How to use Hydroxychloroquine SULFATE Take this medication by mouth exactly as directed by your doctor. To help prevent stomach upset, take it with food or milk. Swallow the tablets whole since breaking or crushing them may leave a bitter taste. The dosage and length of treatment are based on your medical condition and response to treatment. Children's dose is also based on weight. To prevent malaria, take this medication by mouth as directed by your doctor, usually once a week on the same day each week. Mark a calendar to help you remember. This drug is usually started 1 to 2 weeks before entering the malarious area. Continue to take it weekly while in the area and for 4 to 8 weeks after leaving the area, or as directed by your doctor. To treat malaria, follow your doctor's instructions. For lupus or rheumatoid arthritis, take this medication by mouth as directed by your doctor, usually once or twice daily. Your doctor may gradually increase your dose. Once you have been taking the medication for a while and your condition has improved, your doctor may instruct you to lower your dose until you find the dose that works best with the fewest side effects. If you are also taking a certain drug for diarrhea ( </s>