Below are the main rubriks (i.e strongest indications or symptoms) of Merc Viv in traditional homeopathic usage, not approved by the FDA.
Confusion and Vertigo.
Vertigo, even to falling down,
Vertigo only in the evening,
Vertigo on ascending or descending steps,
Vertigo, with raging headaches,
Almost incessant vertigo,
Violent vertigo, so that sometimes he fell down like one intoxication,
Vertigo, frequently very violent,
Headache and vertigo, especially violent after a glass of beer,
Frequent headache and vertigo,
Fulness, throbbing, and vertigo in head (after a few minutes),
Throbbing headache, with vertigo,
Frontal headache, with fulness, soon passing to the occiput, with vertigo (after twenty minutes),≡ more ...