It produces faintness, sinking, convulsions, twitching and sopor. Blueness of lips, face and fingernails. Head drawn backwards and to the left in spasms. Rolling of the eyeballs in their vertical axis is prominent feature. Pupils dilated. Nystagmus. Respiration, slow, difficult, sighing. Involuntary evacuation. Paralysis of all limbs. Secretions smell strongly of bitter almonds.