Below are the main rubriks (i.e strongest indications or symptoms) of Nux Vomica in traditional homeopathic usage, not approved by the FDA.
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WORSE, morning, mental exertion, after eating, touch, spices, stimulants, narcotics, dry weather, cold.
BETTER, from a nap, if allowed to finish it; in evening, while at rest, in damp, wet weather (Causticum Caust.), strong pressure.