Periciazine (INN), also known as pericyazine (BAN) or Propericiazine, is a drug that belongs to the phenothiazine class of typical antipsychotics. Pericyazine is not approved for sale in the United States. It is commonly sold in Canada and Russia under the tradename Neuleptil and in the United Kingdom and Australia under the tradename Neulactil. The primary uses of pericyazine include the short-term treatment of severe anxiety or tension and in the maintenance treatment of psychotic disorders such as schizophrenia. There is insufficient evidence to determine whether periciazine is more or less effective than other antipsychotics. Pericyazine is a rather sedating and anticholinergic antipsychotic, and despite being classed with the typical antipsychotics, its risk of extrapyramidal side effects is comparatively low. It has a relatively high risk of causing hyperprolactinemia and a moderate risk of causing weight gain and orthostatic hypotension.

Allobarbital (5,5-diallylbarbituric acid) is a medium to long-acting barbiturate. It is under international control according to the UN Convention on Psychotropic Substances (Schedule IV). It is used as a sedative and hypnotic and in combination with acetaminophen and codeine as an analgesic. Allobarbital exerts anticonvulsive activity through GABA-ergic mechanisms. Sulfuric derivatives of allobarbital may exert anti-inflammatory activity.

Cyclobarbital (5-cyclohexenyl-5-ethyl-barbituric acid) is a short-acting barbiturate exerting sedative-hypnotic properties. Cyclobarbital is metabolized to inactive ketocyclobarbital. The convention on psychotropic substances, which was signed in Vienna in 1971, today regulates cyclobarbital as a schedule III barbiturate. Cyclobarbital is used in combination with diazepam tranquilizer (Reladorm).

Bromazepam (marketed under several brand names, including Lectopam, Lexotan, Lexilium, Lexaurin, Brazepam, Rekotnil, and Lexotanil)[1] is a benzodiazepine derivative drug, patented by Roche in 1963 and developed clinically in the 1970s. It is mainly an anti-anxiety agent with similar side effects to diazepam (Valium). In addition to being used to treat anxiety or panic states, bromazepam may be used as a premedicant prior to minor surgery. Bromazepam typically comes in doses of 3 mg and 6 mg tablets.[5] Bromazepam is contraindicated and should be used with caution in women who are pregnant, the elderly, patients with a history of alcohol or other substance abuse disorders and children. Prolonged use of bromazepam causes tolerance and may lead to both physical and psychological dependence on the drug, and as a result, it is a medication which is controlled by international law. Bromazepam binds to the GABA receptor GABAA, causing a conformational change and increasing the inhibitory effects of GABA. Bromazepam is a long-acting benzodiazepine and is lipophilic and metabolized hepatically via oxidative pathways.

Fluspirilene, a neuroleptic drug, which is used clinically to treat schizophrenic patients, by blocking of dopamine receptors, especially the dopamine D2 receptors. Fluspirilene also displays calcium channel-blocking activity; it inhibits glutamate release primarily by reducing presynaptic Ca2+ influx via N-type Ca2+ channels that also may contribute to the antischizophrenic action of the drug. Recently in the frame of a project of drugs repositioning, fluspirilene was studied as an anti-cancer drug. It was found, that fluspirilene demonstrates a significant inhibitory effect on the proliferation and invasion of glioma cells. Thus, it can be a promising drug for the treatment of glioblastoma. In addition, fluspirilene, as a potential cyclin-dependent kinase 2 inhibitor, was investigated in animal models for the treatment of human hepatocellular carcinoma. Taken into account that fluspirilene has a long history of safe human use, the drug can be applicable in clinical therapy for cancer’s disease immediately.

Pipamperone (INN, USAN, BAN), also known as Carpiperone and Floropipamide or Fluoropipamide, and as Floropipamide hydrochloride (JAN), is a typical antipsychotic of the butyrophenone family used in the treatment of schizophrenia. It is or has been marketed under brand names including Dipiperon, Dipiperal, Piperonil, Piperonyl, and Propitan. Pipamperone acts as an antagonist of the 5-HT2A, 5-HT2B, 5-HT2C D2, D3, D4, α1-adrenergic, and α2-adrenergic receptors. It shows the much higher affinity for the 5-HT2A and D4 receptors over the D2receptor (15-fold in the case of the D4 receptor, and even higher in the case of the 5-HT2A receptor), is regarded as "highly selective" for the former two sites at low doses. Pipamperone has low and likely insignificant affinity for the H1 and mACh receptors, as well as for other serotonin and dopamine receptors. Low-dose pipamperone (5 mg twice daily) has been found to accelerate and enhance the antidepressant effect of citalopram. Pipamperone is approved in some European countries. At its usually recommended antipsychotic dose (120–360 mg/d), it has relatively weak neuroleptic activity because it is only moderately effective as a dopamine D2-receptor antagonist, even at high doses.

Hexapropymate, a hypnotic/sedative drug that was available without prescription in Belgium under the trade name Merinax for the treatment of insomnia. Poisoning with hexapropymate was a serious condition that required symptomatic treatment in the intensive care unit. As a result, the drug was substituted by newer agents with improved safety profiles.

Benperidol is a relatively old antipsychotic drug that has been marketed since 1966. It has been used in Germany for 30 years, but is also available in Belgium, Greece, Italy, the Netherlands and the UK. Benperidol is a drug which is a highly potent butyrophenone derivative. It is the most potent neuroleptic on the European market, with chlorpromazine equivalency as high as 75 to 100 (about 150 to 200% potency in terms of dose compared to haloperidol). Benperidol was discovered at Janssen Pharmaceutica in 1961. Benperidol is a potent dopamine receptor antagonist, with a high affinity for the D2-sites. The antipsychotic effects of this drug are primarily due to blockade of the D receptors. In terms of D receptor blockade, benperidol is one of the most potent antipsychotic agents, being approximately eight times more potent than haloperidol. Benperidol also acts as a dopamine antagonist in the chemoreceptor trigger zone, giving rise to antiemetic properties. It is also a weak antagonist at muscarinic, histamine H1, and alpha1-adrenoceptors. Adverse effects include extrapyramidal side effects and tardive dykinesia

Chlormethiazole has sedative, hypnotic, anticonvulsant and neuroprotective properties. This drug is approved in different counties under the different brand name (e.g., Heminevrin) and is used for the management of restlessness and agitation in the elderly, short-term treatment of severe insomnia in the elderly and treatment of alcohol withdrawal symptoms. Clomethiazole interacts with the picrotoxin/barbiturate site of the GABAA-receptor-chloride channel complex. Clomethiazole is pharmacologically distinct from both the benzodiazepines and the barbiturates. Given alone its effects on respiration are slight and the therapeutic index high.