Below are the main rubriks (i.e strongest indications or symptoms) of Cocculus Indicus in traditional homeopathic usage, not approved by the FDA.
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Sense of emptiness in head
Opening and shutting sensation, especially in occiput
Trembling of head
Headache In occiput and nape; worse, lying on back of head
Sick headache from carriage-riding, cannot lie on back part of head
Pain in eyes as if torn out of head.≡ more ...