Below are the main rubriks (i.e strongest indications or symptoms) of Arsenicum Album in traditional homeopathic usage, not approved by the FDA.
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Heart; Palpitation, pain, dyspnoea, faintness
Irritable heart in smokers and tobacco-chewers
Pulse more rapid in morning ( Sulphur Sulph.) Dilatation
Angina pectoris, with pain in neck and occiput.
Unable to lie down; fears suffocation
Asthma worse midnight
Burning in chest
Cough worse after midnight; worse lying on back
Expectoration scanty, Frothy
darting pain through upper third of right lung
Hemoptysis with pain between shoulders; burning heat all over
Cough dry, as from Sulphur fumes; After drinking.≡ more ...