Oxazolobenzodiazepines

Cloxazolam is a benzodiazepine derivative that has anxiolytic, sedative, and anticonvulsant properties. It is not widely used; as of August 2018 it was marketed in Belgium, Luxembourg, Portugal, Brazil, and Japan. In 2019, it has been retired from the Belgian market.

Oxazolam is a drug that is a benzodiazepine derivative. It has anxiolytic, anticonvulsant, sedative, and skeletal muscle relaxant properties. It is a prodrug for desmethyldiazepam.

Haloxazolam (marketed in Japan under the brand name Somelin), is a drug which is a benzodiazepine derivative. It has similar hypnotic properties as the benzodiazepine drugs triazolam, temazepam, and flunitrazepam and as such is indicated for the treatment of insomnia. A study in cats comparing estazolam and haloxazolam found that haloxazolam only affects gamma motor neurons, whereas estazolam affects both alpha and gamma motor neurons.

Flutazolam (Coreminal, MS-4101) is a drug which is a benzodiazepine derivative. It was invented in Japan, and this is the main country in which it has been used medically. It has sedative, muscle relaxant, anticonvulsant, and anxiolytic effects similar to those produced by other benzodiazepine derivatives, and though it is around the same potency as diazepam, it produces a more marked sedation and impaired coordination. It is indicated for the treatment of insomnia. Its major active metabolite is n-desalkylflurazepam, also known as norflurazepam, which is also a principal metabolite of fluraze

Mexazolam (marketed under the trade names Melex and Sedoxil) is a drug which is a benzodiazepine derivative. Mexazolam has been trialed for anxiety and was found to be effective in alleviating anxiety at one week follow-up. Mexazolam is metabolised via the CYP3A4 pathway. HMG-CoA reductase inhibitors including simvastatin, simvastatin acid, lovastatin, fluvastatin, atorvastatin and cerivastatin inhibit the metabolism of mexazolam, but not the HMG-CoA reductase inhibitor pravastatin. Its principal active metabolites are chlorodesmethyldiazepam (also known as chloronordiazepam or delorazepam, tr