Background Carbon monoxide (CO) is a colorless, odorless gas produced by incomplete combustion of carbonaceous material CO is formed as a by-product of burning organic compounds
Background Sedative-hypnotics are a group of drugs that cause CNS depression. Benzodiazepines (BZD) barbiturates nonbarbiturate nonbenzodiazepine sedativehypnotics (NBNB) the most commonly used agents