MERCURIUS PRAECIPITATUS RUBER CMAction of Medicine: Merc pr r has produced suffocative attacks at night or lying down at the point of falling asleep, patient is obliged to jump up suddenly which relieves. Heaviness in occiput with otorrhea. General trembling. Convulsions. Blepharitis, internally and externally. Gonorrhea, urethra felt as a hard string. Chancroid, phagedenic ulcer and bubo. Pemphigus,mucous patches. Eczema with cracks and fissures. Barber's itch. Cramps of internal