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Noctec

Last reviewed on RxList: 12/8/2004
Noctec Side Effects Center

Last reviewed on RxList 7/8/2016

Noctec (chloral hydrate) is a hypnotic used to treat insomnia and to calm patients before surgery or other procedures. Common side effects of Noctec include drowsiness, trouble waking up in the morning, nausea, vomiting, stomach pain, diarrhea, and headache. Tell your doctor if you experience serious side effects of Noctec including:

  • slow or shallow breathing
  • mental/mood changes (such as confusion, thinking that others wish to harm you)
  • sleepwalking
  • staggering walk
  • loss of balance
  • severe dizziness
  • fainting
  • stomach problems (gastritis) or
  • kidney problems
  • vomit that looks like coffee grounds
  • difficult or painful swallowing
  • black/tarry stools
  • severe stomach or
  • abdominal pain, and
  • changes in the amount of urine

Our Noctec (chloral hydrate) Side Effects Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Noctec Consumer Information
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.

Read the entire patient information overview for Noctec (Chloral Hydrate)

Noctec Professional Information

SIDE EFFECTS

Central Nervous System

Occasionally a patient becomes somnambulistic and he may be disoriented and incoherent and show paranoid behavior. Rarely, excitement, tolerance, addiction, delirium, drowsiness, staggering gait, ataxia, lightheadedness, vertigo, dizziness, nightmares, malaise, mental confusion and hallucinations have been reported.

Hematelogical

Leukopenia and eosinophilia have occasionally occurred.

Dermatological

Allergic skin rashes including hives, erythema, eczematoid dermatitis, urticaria, and scarlatiniform exanthems have occasionally been reported.

Gastrointestinal

Some patients experience gastric irritation and occasionally nausea and vomiting, flatulence, diarrhea, and unpleasant taste occur.

Miscellaneous

Rarely, headache, hangover, idiosyncratic syndrome, and ketonuria have been reported.

DRUG ABUSE AND DEPENDENCE

Controlled Substance

Drug Enforcement Administration Schedule IV.

Abuse

Chloral hydrate may be habit- forming. Patients known to be addiction- prone and patients who actively solicit hypnotics in increasing doses are potential addicts. Many patients take higher doses of hypnotics than they admit, and slurring of speech, incoordination, tremulousness, and nystagmus should arouse suspicion. Drowsiness, lethargy, and hangover are frequently observed from excessive drug intake.

Dependence

Prolonged use of larger than usual therapeutic doses may result in psychic and physical dependence. Tolerance and psychologic dependence may develop by the second week of continued administration.

Chloral hydrate addicts may take huge doses of the drug (i.e., up to 12 g nightly has been reported). This abuse is similar to alcohol addiction and sudden withdrawal may result in central nervous excitation, with tremor, anxiety, hallucination, or even delirium which may be fatal. In patients suffering from chronic chloral hydrate intoxication, gastritis is common and skin eruptions may develop. Parenchymatous renal injury may also occur. Withdrawal should be undertaken in a hospital and supportive treatment similar to that used during barbiturate withdrawal is recommended.

Read the entire FDA prescribing information for Noctec (Chloral Hydrate)

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© Noctec Patient Information is supplied by Cerner Multum, Inc. and Noctec Consumer information is supplied by First Databank, Inc., used under license and subject to their respective copyrights.

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