Hydrocyanic acid

One of the most toxic agents known. Convulsions and paralysis express the action of this remedy. Spasmodic constriction in larynx, feeling of suffocation, pain and tightness in chest, palpitation; pulse weak, irregular. Singing sensation at the epigastrium. Hysterical and epileptic convulsions. Cyanosis. Collapse, due‘to some pulmonary condition not a cardiac collapse. Catalepsy. Cholera. Stage of collapse. [Ars.; Verat.] Coldness. Tetanus narcolepsy.

Mind

Unconscious. Wild delirium. Fear of imaginary troubles. Fears everything—horses, wagons, houses falling, etc.

Head

Violent stupefying headache. Brain feels on fire. Pupils motionless or dilated. Supra-orbital neuralgia, with flushing on same side of face.

Face

Jaws clenched in rigid spasm. Froths at mouth. Pale, bluish lips.

Stomach

Tongue cold. Drink rumbles through throat and stomach. Gastralgia; worse when stomach is empty. Great sinking at pit of stomach. Pulsative pain in precordial region.

Respiratory

Noisy and agitated breathing. Dry, spasmodiec, suffocative cough. Asthma, with contraction of throat. Whooping-cough. Paralysis of lungs. [Aspidos.] Marked cyanosis; venously congested lung.

Heart

Violent palpitation. Pulse, weak, irregular. Cold extremities. Torturing painin chest. Angina pectoris. [Spigel.; Oxal. ac.]

Sleep

Yawning, with shivering. Irresistible drowsiness. Vivid, incoherent dreams.

Relationship

Antidotes: Ammon.; Camph.; Opium.

Compare: Cicuta; Œnanthe; Camph.; Lauroc.

Dose,—Sixth and higher potencies.