Phosphorus.
Physostigma.
Picrotoxin: weak and anemic type: or nocturnal attacks; must be persisted in.
Potassium Bromate.
Potassium Bromide.
Potassium Iodide: with bromide; alone in syphilitic history.
Potassium Nitrite.
Quassia: injections when due to worms.
Quinine.
Rubidium-Ammonium Bromide.