 <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]  used by your body, or by affecting certain parts of the brain. This medication is a combination of phentermine and topiramate. Phentermine is an appetite suppressant and belongs to a class of drugs called sympathomimetic amines. Topiramate is known as an anticonvulsant or antiepileptic drug. How to use Qsymia Read the Medication Guide provided by your pharmacist before you start taking this medication and each time you get a refill. If you have any questions, ask your doctor or pharmacist. Take this medication by mouth with or without food as directed by your doctor, usually once daily in the morning. Taking this medication late in the day may cause trouble sleeping (insomnia). Swallow the capsules whole. Do not crush or chew the capsules. Doing so can release all of the drug at once, increasing the risk of side effects. The dosage is based on your medical condition and response to treatment. To reduce your risk of side effects, your doctor may direct you to start this medication at a low dose and gradually increase your dose. Follow your doctor's instructions carefully. To prevent kidney stones from forming, drink plenty of liquids while taking this medication unless your doctor instructs you otherwise. If you suddenly </s>