Clopenthixol

Clopenthixol
Clinical data
Routes of; administration	Oral
ATC code	N05AF02 (WHO) ;
Identifiers
	IUPAC name (E,Z)-2-[4-[3-(2-chlorothioxanthen-9-ylidene) propyl]piperazin-1-yl]ethanol;
CAS Number	982-24-1 ; E: 53772-84-2 ;
PubChem CID	12454;
ChemSpider	11945 ;
UNII	0A432D932A; E: FLE878A8ZI ;
KEGG	D02613 ;
ChEMBL	ChEMBL53904 ;
CompTox Dashboard (EPA)	DTXSID9048223 ;
ECHA InfoCard	100.012.333
Chemical and physical data
Formula	C22H25ClN2OS
Molar mass	400.97 g·mol−1
3D model (JSmol)	Interactive image;
	SMILES Clc2cc1C(c3c(Sc1cc2)cccc3)=CCCN4CCN(CCO)CC4;
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Clopenthixol (Sordinol), also known as clopentixol, is a typical antipsychotic drug of the thioxanthene class. It was introduced by Lundbeck in 1961.

Clopenthixol is a mixture of cis and trans isomers. Zuclopenthixol, the pure cis isomer, was later introduced by Lundbeck in 1962, and has been much more widely used. Both drugs are equally effective as antipsychotics and have similar adverse effect profiles, but clopenthixol is half as active on a milligram-to-milligram basis and appears to produce more sedation in comparison.

Clopenthixol is not approved for use in the United States.

Pharmacokinetics of long-acting injectable antipsychotics
Medication	Brand name	Class	Vehicle	Dosage	T_max	t_1/2 single	t_1/2 multiple	logP^c
Aripiprazole lauroxil	Aristada	Atypical	Water^a	441–1064 mg/4–8 weeks	24–35 days	?	54–57 days	7.9–10.0
Aripiprazole monohydrate	Abilify Maintena	Atypical	Water^a	300–400 mg/4 weeks	7 days	?	30–47 days	4.9–5.2
Bromperidol decanoate	Impromen Decanoas	Typical	Sesame oil	40–300 mg/4 weeks	3–9 days	?	21–25 days	7.9
Clopentixol decanoate	Sordinol Depot	Typical	Viscoleo^b	50–600 mg/1–4 weeks	4–7 days	?	19 days	9.0
Flupentixol decanoate	Depixol	Typical	Viscoleo^b	10–200 mg/2–4 weeks	4–10 days	8 days	17 days	7.2–9.2
Fluphenazine decanoate	Prolixin Decanoate	Typical	Sesame oil	12.5–100 mg/2–5 weeks	1–2 days	1–10 days	14–100 days	7.2–9.0
Fluphenazine enanthate	Prolixin Enanthate	Typical	Sesame oil	12.5–100 mg/1–4 weeks	2–3 days	4 days	?	6.4–7.4
Fluspirilene	Imap, Redeptin	Typical	Water^a	2–12 mg/1 week	1–8 days	7 days	?	5.2–5.8
Haloperidol decanoate	Haldol Decanoate	Typical	Sesame oil	20–400 mg/2–4 weeks	3–9 days	18–21 days		7.2–7.9
Olanzapine pamoate	Zyprexa Relprevv	Atypical	Water^a	150–405 mg/2–4 weeks	7 days	?	30 days	–
Oxyprothepin decanoate	Meclopin	Typical	?	?	?	?	?	8.5–8.7
Paliperidone palmitate	Invega Sustenna	Atypical	Water^a	39–819 mg/4–12 weeks	13–33 days	25–139 days	?	8.1–10.1
Perphenazine decanoate	Trilafon Dekanoat	Typical	Sesame oil	50–200 mg/2–4 weeks	?	?	27 days	8.9
Perphenazine enanthate	Trilafon Enanthate	Typical	Sesame oil	25–200 mg/2 weeks	2–3 days	?	4–7 days	6.4–7.2
Pipotiazine palmitate	Piportil Longum	Typical	Viscoleo^b	25–400 mg/4 weeks	9–10 days	?	14–21 days	8.5–11.6
Pipotiazine undecylenate	Piportil Medium	Typical	Sesame oil	100–200 mg/2 weeks	?	?	?	8.4
Risperidone	Risperdal Consta	Atypical	Microspheres	12.5–75 mg/2 weeks	21 days	?	3–6 days	–
Zuclopentixol acetate	Clopixol Acuphase	Typical	Viscoleo^b	50–200 mg/1–3 days	1–2 days	1–2 days		4.7–4.9
Zuclopentixol decanoate	Clopixol Depot	Typical	Viscoleo^b	50–800 mg/2–4 weeks	4–9 days	?	11–21 days	7.5–9.0
Note: All by intramuscular injection. Footnotes: ^a = Microcrystalline or nanocrystalline aqueous suspension. ^b = Low-viscosity vegetable oil (specifically fractionated coconut oil with medium-chain triglycerides). ^c = Predicted, from PubChem and DrugBank. Sources: Main: See template.