SIDE EFFECTS: Drowsiness and trouble waking up in the morning, nausea, vomiting, stomach pain, diarrhea, and headache may occur. Stomach problems can be reduced by taking chloral hydrate with a full glass of water. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.Tell your doctor immediately if any of these rare but very serious side effects occur: slow/shallow breathing, mental/mood changes (such as confusion, thinking that others wish to harm you), sleep-walking, staggering walk/loss of balance, severe dizziness, fainting.Long-term use may cause serious stomach problems (gastritis) or kidney problems. Tell your doctor immediately if any of these rare but very serious side effects occur: vomit that looks like coffee grounds, difficult/painful swallowing, black/tarry stools, severe stomach/abdominal pain, change in the amount of urine.A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including: 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.In the US -Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Quick GuideSleep Disorders: Insomnia, Sleep Apnea, and More
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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