Cyclizine Hydrochloride
Synonym(s):1-Benzhydryl-4-methylpiperazine hydrochloride;Marezine hydrochloride
- CAS NO.:303-25-3
- Empirical Formula: C18H23ClN2
- Molecular Weight: 302.84162
- MDL number: MFCD00023293
- EINECS: 206-136-9
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-06-24 18:39:39
What is Cyclizine Hydrochloride?
Chemical properties
Off-White Solid
moderately soluble in water
Originator
Marezine,BurroughsWellcome,US,1953
The Uses of Cyclizine Hydrochloride
Cyclizine Hydrochloride is a piperazine derivative with anti-emetic activity that is useful in the prevention and treatment of nausea and vomiting associated with motion sickness. Antiemetic.
The Uses of Cyclizine Hydrochloride
Motion sickness (prophylaxis and treatment)—Oral cyclizine is indicated for the prophylaxis and treatment of nausea, vomiting, and dizziness associated with motion sickness. Nausea and vomiting, postoperative (prophylaxis and treatment)—to prevent or reli
What are the applications of Application
Cyclizine Hydrochloride is a piperazine derivative with anti-emetic activity
Definition
ChEBI: Cyclizine hydrochloride is a hydrochloride salt consisting of equimolar amounts of cyclizine and hydrogen chloride. It has a role as a H1-receptor antagonist, a central nervous system depressant, a cholinergic antagonist and an antiemetic. It contains a cyclizine.
Manufacturing Process
One-tenth mol (20 g) of benzhydryl chloride was mixed with 0.19 mol (19 g) of N-methylpiperazine and about 10 cc of benzene and the whole was heated on the steam bath four hours. The contents of the flask was partitioned between ether and water, and the ethereal layer was washed with water until the washings were neutral. The base was then extracted from the ethereal layer by N hydrochloric acid and the extract, made acid to Congo red paper, was evaporated under vacuum. 29.5 g of the pure dihydrochloride of Nmethyl-N'-benzhydryl piperazine was recovered from the residue by recrystallization from 95% alcohol melting above 250°C with decomposition. The addition of alkali to an aqueous solution of the dihydrochloride liberated the base which was recovered by recrystallization from petroleum ether melting at 105.5° to 107.5°C.
Therapeutic Function
Antinauseant
Properties of Cyclizine Hydrochloride
| Melting point: | 258-260℃ |
| Boiling point: | 457.04°C (rough estimate) |
| Density | 1.0551 (rough estimate) |
| refractive index | 1.5749 (estimate) |
| storage temp. | Refrigerator |
| solubility | Methanol: 1 mg/ml |
| form | neat |
Safety information for Cyclizine Hydrochloride
| Signal word | Danger |
| Pictogram(s) |
![]() Skull and Crossbones Acute Toxicity GHS06 |
| GHS Hazard Statements |
H301:Acute toxicity,oral |
| Precautionary Statement Codes |
P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P270:Do not eat, drink or smoke when using this product. P301+P310:IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. P405:Store locked up. P501:Dispose of contents/container to..… |
Computed Descriptors for Cyclizine Hydrochloride
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