Precautions
Drug information provided by: Merative, Micromedex®
It is very important that your doctor check your progress at regular visits to make sure this medicine is working properly and to check for unwanted effects.
If you think you need to take suvorexant for more than 7 to 10 days, be sure to discuss it with your doctor. Insomnia that lasts longer than this may be a sign of another medical problem.
This medicine will add to the effects of alcohol and other CNS depressants (medicines that make you drowsy or less alert). Some examples of CNS depressants are antihistamines or medicine for hay fever, other allergies, or colds, sedatives, tranquilizers, or sleeping medicine, prescription pain medicine or narcotics, medicine for seizures or barbiturates, muscle relaxants, or anesthetics, including some dental anesthetics. Check with your doctor before taking any of the above while you are using this medicine.
This medicine may cause some people to become drowsy or less alert than they are normally. Even though suvorexant is taken at bedtime, it may cause some people to feel drowsy or less alert on arising. Make sure you know how you react to suvorexant before you drive, use machines, or do anything else that could be dangerous if you are not alert.
If you develop any unusual and strange thoughts or behavior while you are taking suvorexant, be sure to discuss it with your doctor. Some changes that have occurred in people taking this medicine are like those seen in people who drink alcohol and then act in a manner that is not normal. Other changes may be more unusual and extreme, such as confusion, worsening of depression, hallucinations (seeing, hearing, or feeling things that are not there), suicidal thoughts, and unusual excitement, nervousness, or irritability.
This medicine may cause you to do things while you are still asleep that you may not remember the next morning. You could drive a car, sleepwalk, have sex, make phone calls, or prepare and eat food while you are asleep or not fully awake. Tell your doctor right away if any of these things occur.
This medicine may cause sleep paralysis (temporary inability to move or talk for up to several minutes while you are going to sleep or wake up) or have cataplexy-like symptoms (temporary weakness in your legs). Tell your doctor right away if you have these symptoms while you are using this medicine.
Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements.
Portions of this document last updated: Aug. 01, 2024
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