What were the earliest forms of anaesthetics?

• A. Chloroform, ether, nitrous oxide, alcohol
• B. Alcohol, opium, laughing gas, ether
• C. Cocaine, ether, alcohol, opium
• D. Ether, chloroform, nitrous oxide, alcohol

Answer: (B)

The earliest anaesthetics came from using substances that dulled pain and sedated the patient before modern anesthesia was developed. Alcohol and opium were traditional remedies to calm and relieve pain during procedures. Then came the first inhalation agents that allowed surgeons to perform operations while the patient slept or was unaware: nitrous oxide, known as laughing gas, was explored for pain relief in the late 18th century and used in the 1840s, and ether was introduced as a reliable general anaesthetic in the mid-1840s. Put together, alcohol, opium, nitrous oxide (laughing gas), and ether illustrate the progression from basic sedatives to the first true general anaesthetic. Substances like chloroform or cocaine entered later in history, so they don’t fit the earliest set as well as this combination.