Related Experiment Video
Updated: Aug 4, 2026

Intracranial Pharmacotherapy and Pain Assays in Rodents
Published on: April 9, 2019
Midazolam versus fentanyl/droperidol and placebo as intramuscular premedicant
Abstract:
Midazolam, a new short-acting benzodiazepine with promising premedicant effects, was investigated in a double-blind, randomized clinical trial in 203 patients versus fentanyl/droperidol and placebo. Subjective effects, side-effects, amnesia and overall satisfaction were recorded. Midazolam caused the greatest decrease in anxiety level, and while causing more confusion and somnolence than placebo, caused less confusion and somnolence than fentanyl/droperidol. Half the patients who received midazolam reported anterograde amnesia. No serious side-effects were reported. Patient satisfaction was greater in the midazolam group than in the other groups.
More Related Videos
Related Concept Videos
Opioid Analgesics: Synthetic and Semisynthetic Opioids
Parenteral Anesthetics: Overview
Sedatives and Hypnotics: Overview
Sedative-hypnotics are categorized into barbiturates, benzodiazepines (BZDs), and non-benzodiazepines or Z-drugs. These drugs work by suppressing central nervous system activity, and this suppression is dose-dependent. Older sedative medications, like barbiturates, follow a linear curve in...
Sedatives and Hypnotics Drugs: Benzodiazepines
Benzodiazepines work by enhancing the effects of the inhibitory neurotransmitter GABA. They bind to the GABAA receptor, increasing its affinity for GABA, which opens chloride...
Sedatives and Hypnotics Drugs: Miscellaneous Agents
Melatonin congeners like ramelteon (Rozerem) and tasimelteon (Hetlioz) selectively bind to melatonin receptors (MT1 and MT2) and thus mimic the actions of melatonin, a hormone that regulates sleep-wake cycles. Tasimelteon is primarily used for non-24-hour sleep-wake disorder, common in blind patients. They are also used to treat conditions like insomnia...
Drug Delivery: Enteral Route
Drugs in...

