Midazolam has been used in COVID-19 medical care, in people who have been sedated while they are on ventilators.
The drug works by slowing down brain activity, which helps with relaxation and sleep. It is a benzodiazepine, which is a group of medicines that slow down the central nervous system. The medication is most frequently given in hospitals, dental offices, or in other medical settings. It is more potent, shorter lasting, and can cause less injection site pain than other benzodiazepines. Unlike other benzodiazepines it needs to be administered by a medical professional.
Midazolam has a United States Food and Drug Administration black box warning, which notes that the medication has been associated with respiratory depression and arrest because it can slow or stop breathing. Black box warnings are issued to consumers when medications or products may have serious or life-threatening side effects that could lead to severe illness, hospitalizations, and death. This is why it is vital that medical professionals administer the medication in specific dosages and monitor patients after they have received the shot.
https://health-desk.org/articles/how-is-midazolam-being-used-for-covid-19-is-it-dangerous
The one big mis-treatment regimen I think is forced intubation with addition of expensive Remdesivir. Intubation is a harsh and cruel treatment if the patient is not completely knocked out in a coma because the body fights it every step of the way - from the rhythm of breathing to intense pain and discomfort.
As to whether this other dangerous drug is/was given in addition to intubation and Remdesivir, I do not know but I would not put it past some governments or hospitals under direction of those governments.