Does Ashwagandha have drug interaction with anesthesia?

Hi doctor,

I am due to have a surgery cone biopsy for CIN 3. I am stopping all my supplements a week before, as requested by the hospital. However, I ordered an herbal medicine last week, Ashwagandha, to try for insomnia and nerves. It was not wise to try without consulting a doctor. I think I have only taken it three to four times in total, about half a teaspoon for each dose over the last week. I had almost a half teaspoon of water.

I just saw on the internet that they advised to stop taking Ashwagandha at least two weeks before surgery, as it may have a bad interaction with anesthesia, and also may cause bleeding. I have never had general anesthesia before, and I am somewhat terrified of not waking up from it already. Another doctor advised me to stop taking it one week prior, which put me in the clear.

I wanted to have your opinion on it. The last dose was 48 hours ago. Do you know about this herb and its dangers with surgery? Do I need to reschedule my surgery? Please help.

Thank you.

Hi doctor,

Thank you very much for your reply.

I also took a high dose of Vitamin C 3000-4000 mg about 10 days before, and quit cold turkey today without tapering. Same thing with fish oil. Is that fine? I am 46 years old but have never had general anesthesia before. I am very much concerned about it. Is that the same as sedation?

Please guide.

Thank you.