Doctors had to reopen her surgical wound, remove a blood clot and stop the bleeding. Carol Norred is the nurse who administered Lyn's anesthesia. She's also the one who figured out what went wrong. It turns out a prescription drug Lyn was on for leg cramps interacted with the herbs she was taking. If the blood does not clot normally, there's an increased chance of bleeding, especially during an operation, if you're cut.
Herbs can also make drugs less effective.
For example, the government recently warned the popular herb St. John's wort could interfere with the prescription drug Crixovan, used to treat HIV infection. And we're also looking at garlic supplements, which is here. And the mission of this laboratory is to make sure that whatever it says on the label is actually inside the bottle. But experts do know that certain combinations can spell trouble. For example, gingko, garlic, ginger, and feverfew can cause bleeding when used at the same time as aspirin or other blood thinners.