Muscles that aid or assist in the action of the agonists but are not primarily responsible for the action; also referred to as guiding muscles.
Muscle that combines with another and aids in its action.
A drug that, when combined with another drug, produces effects greater than those when the drugs are taken separately, additive effect; potentiation.
A muscle or drug which acts with another and increases the effectiveness of both.
A remedy that stimulates the action of another.
Substance that augments the activity of another substance, agent, or organ, as one drug augmenting the effect of another.
A drug that interacts with another to produce increased activity, which is greater than the sum of the effects of the two drugs given separately. For example, isoniazid (INH) and streptomycin are used together to treat tuberculosis. Some synergists may have dangerous effects, as when MAO inhibitors enhance the effects of barbiturates.
A remedy that acts to enhance the action of another.
An agent that works together with another, with both amplifying the effect of the other.