I've used Wormwood
for 20 years, never even had a headache (maybe bothering some parasites
in your head?), not any symptom ever. The cloves--if I take them on an empty stomach as recommended, and not eat for a couple hours, will upset my stomach. But even a latte is enough to counteract that effect. I suspect you'd have to take half the bottle of Wormwood
to have any concerns--after all, how many folks do you hear of taking Wormwood
to kill themselves?
They did back in the artiste days in cool salons of the edgy art elites and their patrons in Europe (impressionist era) drink Absinthe which is wormwood based, and had some fatalities. But I don't think they had the technology to determine what actually was the reason. Maybe the alcohol increases it's effects or the fellows just went on a bender and drank wayyyy too much.
Overall, it's better for you than any of the really dangerous 'drugs' are. Have you read some of those side effects---liver failure, kidney failure, even death??? At least if the bender killed you, you'd die happy, or at least have had some fun before you died.:)