[ Home ] [ Controlled Substances ] [ Depressants ]
CHLORAL HYDRATE
|
Slip you a Mickey:
You know how in those old movies, people would slip a "Mickey Finn" into a drink to knock someone unconscious? It was supposed to be chloral hydrate. An early sleep medication, chloral hydrate was used to knock people out either to help them sleep, or more nefariously, as a date-rate type substance. The Mickey Finn or "knockout drops" ended up being a mixture of chloral hydrate and alcohol, which are both depressants.

https://www.tuck.com/chloral-hydrate/
The first synthetically produced sedative-hypnotic drug:
commonly used in the late 19th century to treat insomnia and still occasionally used to reduce anxiety or produce sleep before surgery. Chloral hydrate acts as a depressant on the central nervous system, with sedative effects similar to those of barbiturates. First synthesized in 1832, but it was not introduced into medicine until 1869. A therapeutic dose produces a deep sleep lasting four to eight hours with few after effects, but habitual use of the drug results in addiction - a fact quickly noted in the medical literature of the late 19th and the early 20th century.
Symptoms of overdose may include deep stupor, dilation of blood vessels, fall in blood pressure and body temperature, and slowed respiration. In a severe overdose, death usually occurs within 5 to 10 hours. Chloral hydrate was the primary ingredient, along with alcohol, of the "knockout drops" or "Mickey Finns" of popular lore. With the development of safer and more effective drugs, the use of chloral hydrate has declined.

https://www.britannica.com/science/chloral-hydrate
Breastfeeding:
Summary of Use During Lactation:
Short-term or occasional use of chloral hydrate during breastfeeding is unlikely to adversely affect the breastfed infant, especially if the infant is older than 2 months.Because the active metabolite of chloral hydrate has a long half-life, other sedative-hypnotics are preferred for long-term use during breastfeeding, especially while nursing a neonate or preterm infant. Monitor the infant for excessive drowsiness.
Alternate Drugs to Consider:
Chloral Hydrate Drug Levels and Effects:
https://www.ncbi.nlm.nih.gov/books/NBK501305/
Duration: Chloral Hydrate, a sedative drug discovered in 1832 with a history of recreational use going back to the 19th century. Sometimes prescribed for extreme insomnia. For such an old drug, relatively little is known about its long-term term effects on the body. Produces intoxication comparable to alcohol or benzodiazepines. | |||
Route | Onset | Duration | After Effects |
---|---|---|---|
Tripsit Factsheets | |||
![]() Chloral hydrate Basic Information: http://drugs.tripsit.me/noctec | |||
All ROAs: | 20-60 minutes | 5-10 hours | 2-6 hours |
![]() | |||
Avoid: All other CNS depressants. | |||
Aliases:
|
Liver:
Despite many years of use, chloral hydrate has not been implicated in causing serum enzyme elevations or clinically apparent liver injury.
Chloral hydrate Hepatotoxicity:
Chloral hydrate has been in clinical use for many decades and has not been linked to serum enzyme elevations during therapy or instances of clinically apparent liver injury. While prospective studies of the effects of chloral hydrate on liver tests have not been done, the absence of reported instances of liver injury attributable to chloral hydrate suggests that it has little or no hepatic toxicity. Chloral hydrate has been linked to hypersensitivity reactions such as rash, fever and eosinophilia. Chloral hydrate also has major drug-drug interactions with oral anticoagulants, antidepressants and alcohol. In patients with cirrhosis and hepatic decompensation, chloral hydrate can trigger or worsen hepatic encephalopathy.E Likelihood score: E (unlikely cause of clinically apparent liver injury).
Chloral hydrate Overview:
https://www.ncbi.nlm.nih.gov/books/NBK548377/

https://erowid.org/experiences/subs/exp_Chloral_Hydrate.shtml
Chloral Hydrate Oral User Reviews:
22 Total User Reviews Chloral Hydrate Oral Read Reviews Condition: Cronic Trouble Sleeping (15 Reviews): Effectiveness (3.87) Ease of Use (4.53) Satisfaction (3.73)

https://coek.info/pdf-chloral-hydrate-.html
Chloral hydrate:
Chloral hydrate has not been approved by the FDA in the United States or the EMA in the European Union for any medical indication and is on the FDA list of unapproved drugs that are still prescribed by clinicians. However, chloral hydrate products, licensed for short-term management of severe insomnia, are available in the United Kingdom.
- Used for the short-term treatment of insomnia and as a sedative before minor medical or dental treatment.
- It was largely displaced in the mid-20th century by barbiturates and subsequently by benzodiazepines.
- It is also a useful laboratory chemical reagent and precursor.
- It was discovered in 1832
- It is a colorless solid
- In therapeutic doses for insomnia, chloral hydrate is effective within 20 to 60 minutes.
- Chloral hydrate was used as one of the earliest synthetic drugs to treat insomnia until 1912, when phenobarbital replaced it and made its use unnecessary.
Notable Chloral Hydrate Users:
Hank Williams (1923-1953):
Died from a combination of chloral hydrate, morphine and whiskey. Marilyn Monroe (1926-1962):
Died from an overdose of chloral hydrate and pentobarbital (Nembutal) The Jonestown mass murder-suicides (1978):
Involved the communal drinking of Flavor Aid poisoned with Valium, chloral hydrate, cyanide, and Phenergan. Anna Nicole Smith (1967-2007):
Died of "combined drug intoxication" with chloral hydrate as the "major component.History:
It was discovered in 1832 by Justus von Liebig in Gieben when a chlorination (halogenation) reaction was performed on ethanol. Its sedative properties were observed by Rudolf Buchheim in 1861, but only described in detail and published by Oscar Liebreich in 1869; subsequently, because of its easy synthesis, its use became widespread. It was widely used for sedation in asylums and in general medical practice, and also became a popular drug of abuse in the late 19th century.Chloral hydrate is soluble in both water and ethanol, readily forming concentrated solutions. A solution of chloral hydrate in ethanol called "knockout drops" was used to prepare a Mickey Finn

CHLORAL BETAINE
|
One of a group of medicines called hypnotics ('sleeping tablets'). Cloral betaine rapidly breaks down in the stomach to form chloral hydrate. Welldorm tablets are used for the short-term treatment of severe insomnia (sleeping problems) which is interfering with normal daily life.Welldorm will normally be given in addition to other non drug therapies e.g. counseling. Welldorm is normally used in adolescents under the supervision of a medical specialist.
Cloral Betaine Tablets are used for the short-term treatment of severe insomnia which is interfering with normal daily life and where other therapies have failed. Cloral Betaine Tablets should be used as an adjunct to non-pharmacological therapies. The use of hypnotics in adolescents is not generally recommended and if used should be under the supervision of a medical specialist.

https://www.medicines.org.uk/emc/product/4688/smpc


https://www.medicines.org.uk/emc/files/pil.4688.pdf
Duration: Sedative-hypnotic drug that was introduced into the United States in the 60's. | |||
Route | Onset | Duration | After Effects |
---|---|---|---|
Tripsit Factsheets | |||
![]() Chloral betaine Basic Information: http://drugs.tripsit.me/chloral-betaine | |||
All ROAs: | 15-30 minutes | 3-7 hours | 2-8 hours |
![]() |
Chloral betaine:
- A sedative-hypnotic drug
- It was introduced in the United States in 1963
Acts as an extended-acting formulation of chloral hydrate which is then metabolized into trichloroethanol, which is responsible for most or all of its effects.
425 kg chloral hydrate drug, alprazolam seized in Nirmal: Telangana gang transported drugs from Thane; repeat offender Rama Goud among 5 held - Telangana Anti-Narcotics Bureau officials apprehended five individuals in Nirmal district for illicitly transporting alprazolam and other chemicals. A ... Sunday June 22, 2025 - msn.com Telangana Anti Narcotics Bureau arrests five in drug bust - A total of 425 kg of Chloral Hydrate Drug and 1.115 kg of Alprazolam, along with two cars, were seized from them in the drug bust ... PITIFUL LAST DAZE OF ANNA - New York Post - * Chloral hydrate: A drug typically used in hospitals for pre- and postsurgery patients struggling to sleep or in great pain * Diphendydramine: Over-the-counter Benadryl cures itching, ... Sedative-Hypnotic Drugs — Chloral Hydrate - The New England Journal of Medicine - CHLORAL hydrate, introduced into medicine by Liebreich1 in 1869, has long been and still is one of the most effective and least expensive of the sedative-hypnotic drugs. Furthermore, when used wise ... How to Take Chloral Hydrate - Medindia - Find out how to take Chloral Hydrate(drug) and its dose. ... Trade Names/Brand Names of Chloral Hydrate International : Aquachloral, Noctec . Last Updated on August 11, 2022 . Chloral Hydrate Drug Information - Medindia - Chloral Hydrate Medication Information. Learn everything you need to know about Chloral Hydrate-pronunciation, uses, dosage guidelines, indications, and when to take or avoid it. Drug Use - Drexel University - Both Federal and Pennsylvania law have strict guidelines on the use and/or distribution of drugs. Drexel University expects students to inform themselves about and follow these ... Schedule III, IV ... Chloral hydrate 'unpredictable' for pediatric use - The University of Florida has decided to discontinue the use of chloral hydrate following the 2010 death of a 5-year-old Florida boy who was sedated with the drug prior to dental work. In April 2010, ...
| ||
Depressants | Link to this page |