 <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]  at the same time every night. The dosage is based on your medical condition and response to treatment. Children's dose is also based on weight. If you are using the capsule form, swallow the capsules whole. If you are using the liquid form of this medication, read the Instructions for Use Leaflet if available from your pharmacist before you start using tasimelteon suspension and each time you get a refill. Shake the bottle well for at least 30 seconds before each dose. Carefully measure the dose using a special measuring device/spoon. Do not use a household spoon because you may not get the correct dose. If you have any questions, ask your doctor or pharmacist. It is very important to take this medication at the same time each night so that you can form a normal sleep-wake cycle. See also Missed Dose section. It may take up to several months before you get the full benefit of this drug. Tell your doctor if your condition does not get better or if it gets worse.The side effects of Hetlioz LQ Oral: Headache, nightmares, or strange dreams may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly. Tasimelteon may also </s>