 <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]  doctor, usually once daily. The dosage is based on your weight, medical condition, lab tests, and response to treatment. Your treatment may be stopped for a short time if your blood counts are too low. Keep all medical and laboratory appointments. Do not increase your dose or take this medication more often than prescribed. Your condition will not improve any faster, and the risk of serious side effects may be increased. Since this drug can be absorbed through the skin and lungs, women who are pregnant or who may become pregnant should not handle this medication or breathe the dust from the tablets. Tell your doctor if your condition does not improve or if it worsens.The side effects of Busulfan Oral: See also Warning section. Darkening skin or dry mouth may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly. Many people using this medication may have serious side effects. However, you have been prescribed this drug because your doctor has judged that the benefit to you is greater than the risk of side effects. Careful monitoring by your doctor may decrease your risk. Tell your doctor right away if you have any serious side effects, including: signs of liver disease (such as nausea/vomiting that doesn't stop, severe stomach </s>