This product is taken by mouth with or without food, usually before bedtime or as directed by the package label. Follow all directions on the product package. If you have any questions, ask your doctor or pharmacist.
Do not take a dose of this drug unless you have time for at least 6 to 8 hours of sleep after taking this medication.
Dosage is based on your age, medical condition, and response to treatment. If you are taking the extended-release tablets, do not crush or chew them. Doing so can release all of the drug at once, increasing the risk of side effects. Also, do not split extended-release tablets unless they have a score line and your doctor or pharmacist tells you to do so. Swallow the whole or split tablet without crushing or chewing.
If you are using the chewable form, chew thoroughly before swallowing.
If you are using a liquid form, carefully measure your dose using a medication-measuring device or spoon. Do not use a household spoon because you may not get the correct dose. Some brands of this medication should be shaken well before each use.
If you are using the rapidly dissolving tablets, dry your hands before handling the tablet. Some brands are meant to be placed on the tongue, while others are placed under the tongue. Follow your brand’s directions for placing your dose either on or under the tongue. Allow it to dissolve completely, then swallow it with saliva. You do not need to take this medication with water.
This medication may start to work within 30 minutes. If your condition persists or worsens, or if you think you may have a serious medical problem, seek immediate medical attention.
Headache, dizziness, shaking, nausea, or abdominal cramps may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly. This product may also make you drowsy or less alert during the day. Consult your doctor or pharmacist if you have daytime drowsiness.
Tell your doctor right away if any of these unlikely but serious side effects occur: mental/mood changes (e.g., depression, confusion).
A very serious allergic reaction to this product is rare. However, seek immediate medical attention if you notice any of the following symptoms of a serious allergic reaction: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.