There has been a great deal of discussion and controversy among homeopaths regarding this issue. Over the years various substances have been suggested which might either “antidote” or work against homeopathic treatment. Among the long list of these ingredients are: coffee, mint, camphor, chocolate, strong perfumes, certain spices, vegetables, and conventional drugs. At this time, there is absolutely no evidence to suggest that any of these substances would cause a uniform antidoting effect upon individuals consuming homeopathic medicines. There may be very good reasons why certain individuals should refrain from use of these products. In many cases individuals may be sensitive to these products or the agents might pose certain health risks due to their underlying medical condition, but not due to any homeopathic reason.
In my practice, I have found certain individuals to be sensitive to products on this list and for those individuals I have recommended that they exercise caution or that we work on selecting a potency of the homeopathic medicine that works best with these other factors.