Which herb may prolong the effects of anesthesia?

Which herb may prolong the effects of anesthesia?

• A. St. Johns Wort
• B. Kava
• C. Valerian
• D. Feverfew

Answer: (A)

Herbal supplements can interact with anesthesia and affect how long sedation lasts or how deeply they work. St. John’s Wort is known for affecting drug metabolism and transport in the liver, which can unpredictably change the levels of anesthetic agents and adjunct medications. In some patients, these interactions can prolong the depressant effects of anesthesia or slow recovery, making the duration of anesthesia longer than expected. That’s why, among the options listed, this herb is the one most commonly associated with prolonging anesthetic effects in perioperative considerations. If a patient is taking St. John’s Wort, the anesthesia team will usually plan for potential variability in drug responses and often advise stopping the herb well before surgery. The other herbs listed have different risk profiles—kava and valerian are more associated with additive CNS depression, and feverfew is more linked to bleeding risk—so they don’t have the same well-known impact on prolonging anesthesia.

Herbal supplements can interact with anesthesia and affect how long sedation lasts or how deeply they work. St. John’s Wort is known for affecting drug metabolism and transport in the liver, which can unpredictably change the levels of anesthetic agents and adjunct medications. In some patients, these interactions can prolong the depressant effects of anesthesia or slow recovery, making the duration of anesthesia longer than expected. That’s why, among the options listed, this herb is the one most commonly associated with prolonging anesthetic effects in perioperative considerations. If a patient is taking St. John’s Wort, the anesthesia team will usually plan for potential variability in drug responses and often advise stopping the herb well before surgery. The other herbs listed have different risk profiles—kava and valerian are more associated with additive CNS depression, and feverfew is more linked to bleeding risk—so they don’t have the same well-known impact on prolonging anesthesia.