My concept of antidote is "Antidote in homeopathy will not work like it is working or admisibale in allopathy" In homeopathy antidote means opposite symptom between two medicines. Just like bry is complementary, remedies follows well and at the same time it is antidote to rhus tox. My understanding is a competent doctors studied all these symptoms and compared them with reference to symptoms and then compiled as antidote or complementary in order to teach us. Actually the the word
antidote has taken as loan from allopathy in order to teach us just like hahnemann used the word
disease at least 800 hundred times in organon but we do not treat disease.
Rhus is complementary with bry in all their symptoms except in rheumatic or arthritic complains when both have different opposite symptoms like amelioration after movement (rhus tox) and aggrevation even in rest or during movement. Now here on this symptom it will act as antidote on symptoms remember on symptoms and not on medicinal physiological action just like we read in allopathy. In homeopathy antidote concept is symptom based and in allopathy it is pathological base.