The tincture is the preparation of aconite most used.

It has little action on the unbroken skin, but causes secretion. It is quickly ebsorbed from mucous membranes from which it is quickly absorbed. It slows and weakens the heart, dilates the arterioles and lowers the blood pressure. It dulls the sensibility of the peripheral nerves, and in toxic doses causes death by paralyzing the heart.

It is excreted in the urine.