It acts over the central nervous system, causing debbility, paralysis, relaxation of the muscle fibers, slowness of pulse and respiration; vertigo provoked by movement (by malfunction of the cerebellum), colics by the retention of gases in the intestines or by muscle spasms. It cures vomits or nausea caused or aggravated by movement of a car, a boat, a bus, a plane, a train. There's a concomitant vertigo, dizziness and a sensation of emptiness in hollow organs, like heart, stomach, and intestines.
It's also useful for nausea caused by sleep disorders, such as imsomnia, bad sleep or an interrupted sleep; and also by excess of mental work.
Cocculus is a great remedy for headaches, especially the classical migraine. A special indication for Cocculus is that the patient put his hands on his head in order to mitigate the pain. Cocculus' headacche is usually occipital or cervical, and is obvviously accompanied by nausea, vomiting and vertigo.
It is also useful for intermittent fevers with debility, headache, vertigo, sensation of emptiness in head, nausea, difficulty in thinking.
He feels that the time passes too fast, but he does everything very slowly. Every reaction is slow: answers slowly, thinks too much before answering. Forgetful. He needs to read the same passage many times in order to understand what's in it. He doesn't finish anything that he starts. Irresolute. Mental confusion, worse after eating or drinking.
Ailments from vexation or anger, from grief or sadness, from stress; with deep and silent grief. Susceptible to offenses. Speaks repeteadly about past disageable events.
The most important feature in Cocculus is the vertigo that accompanies every other symptom. If he presents the mind symptoms, he's also dizzy, etc.