Hydromorphone is approximately how many times more potent than morphine?

Hydromorphone is approximately how many times more potent than morphine?

• A. Approximately 7 times more potent than morphine.
• B. Approximately equal in potency to morphine.
• C. Approximately 0.5 times as potent as morphine.
• D. Approximately 2 times more potent than morphine.

Answer: (A)

Potency is about how much drug is needed to get the same analgesic effect. Hydromorphone is significantly more potent than morphine because it achieves similar pain relief with a much smaller dose. In clinical practice, for intravenous administration, the equianalgesic ratio is commonly cited as about 1 mg of hydromorphone being roughly equivalent to 7 mg of morphine. So hydromorphone is approximately seven times more potent than morphine, which is why the answer aligns with the option stating sevenfold potency. This higher potency is specific to the route and formulation; the relative potency can differ with other routes, but the general idea is that hydromorphone requires a much smaller dose to achieve the same effect.

Potency is about how much drug is needed to get the same analgesic effect. Hydromorphone is significantly more potent than morphine because it achieves similar pain relief with a much smaller dose. In clinical practice, for intravenous administration, the equianalgesic ratio is commonly cited as about 1 mg of hydromorphone being roughly equivalent to 7 mg of morphine. So hydromorphone is approximately seven times more potent than morphine, which is why the answer aligns with the option stating sevenfold potency. This higher potency is specific to the route and formulation; the relative potency can differ with other routes, but the general idea is that hydromorphone requires a much smaller dose to achieve the same effect.