What is the maximum single adult dose of midazolam for sedation?

• A. 2 mg
• B. 5 mg
• C. 10 mg
• D. 15 mg

Answer: (B)

Midazolam is a fast-acting benzodiazepine used for sedation, and the key idea is to achieve the desired level of sedation by titrating in small amounts while closely monitoring breathing and airway status. For adults given IV for sedation, there is a safety ceiling: a single-dose maximum of 5 mg. This limit helps minimize the risk of oversedation, respiratory depression, airway obstruction, and hypotension. In practice, you’d typically start with a small dose (often around 1 mg IV) and repeat in small increments every couple of minutes until the patient reaches the needed level of sedation, but you don’t exceed 5 mg in one administration. If deeper sedation is still required, you reassess and consider alternative approaches rather than pushing past the single-dose limit. Doses well above 5 mg (such as 10 or 15 mg) carry substantially higher risk and are not used as a single adult dose for sedation.