Organon §115

Some medicines have an initial action with  reciprocal states.

Some medicines have not-a-few symptoms which are partially, or under certain attendant circumstances, opposite to other symptoms that have previously or subsequently appeared, but which are not therefore to be regarded as an actual after-action or simple counter-action of the life force, but which only form the reciprocal state to the various initial-action paroxysms. These are called reciprocal actions.