Typically, it is a chronic mania, or frequent relapses over a period of time, rather than just a simple paroxysm of rage.
This type of insanity is seen in the most extreme cases. It might be indicated in a mass killer who suddenly begins killing many people indiscriminately; of course, one would never prescribe solely on such an indication.
Another possible remedy might be Nux vomica, for example, but Stramonium would have to be at least thought of in such a case.
One would think of Stramonium in the type of mental patient in whom there is no choice except forcible restraint in a padded cell.
The culminating stage is a full-blown eruption of the unconscious into violent insanity. You may get a telephone call from a relative that the patient has suddenly begun smashing windows and furniture and is threatening to kill family members.
This is the type of patient who would need immediate hospitalisation, restraints, and sedatives in the orthodox approach. When you see the patient, he is aggressive and out of control, or he sits in a chair with a rigid posture and a wild look in his eyes, anxious wrinkles on the forehead, about to jump up and run out of the house at any moment.
If left untreated, such a case would inevitably be institutionalised and restrained. With time, the mental state may degenerate into a convulsive disorder, or the common syndrome of organic brain syndrome or senility.