[sfem]

PM does have some dilation effect on blood vessels and can cause minor circulatory changes. Not anything that would impact a normal healthy body in daily life. But undergoing surgery, anaesthetic, other serious pharmaceuticals, etc. takes you out of the normal healthy body in daily life category at least for a short time. I would definitely stop the PM at least a couple of weeks prior and probably after as well. I know from personal experience that PM can cause me trouble in my feet/toes and recently also my fingers. Probably related to my gout in some way, since almost no-one else I am aware of reports such symptoms. But I can reliably reproduce the issue and eliminate it by regulating my PM intake so I know that PM is the trigger, if not the cause. If anyone ever does a study on it, I'll have to volunteer.