What do you mean by antidote & inimical remedy?

In homeopathy, an antidote is any substance that inhibits or destroys the potential benefit of a homeopathic remedy. Certain substances are thought to reverse, or antidote the action of homeopathic remedies, causing the person’s original symptoms to return. For example, homeopaths often suggest that their patients refrain from using even small amounts of coffee, camphor, tea tree oil, and other strong-smelling substances.

An inimical remedy, on the other hand, is one that is very similar to another. If you have given a partially correct remedy that has improved only a portion of the case and are looking to prescribe another partially correct remedy to complete the improvement, you wish to avoid remedies that are too similar (inimical). In other words, inimical remedies are those that disagree or are incompatible with each other. For instance, Nux vomica and Ignatia are considered too similar and hence inimical.