The entire fungus Boletus laricis.—Europe.
Preparation.—Tincture of Boletus.
Dose.—Rx tincture of Boletus gtt. v. to gtt. x., water ℥iv.; a teaspoonful every hour.
Therapeutic Action.—Boletus influences the nervous system, strengthening innervation, and through this blood-making and nutrition. It has been used in intermittent and remittent fever where the patient lacked nervous energy, with good results. Probably its use will be restricted to these cases, as for the ordinary purposes of a tonic we have much better remedies.