DESCRIPTION
A mineral compound, Arsenite of Lime, Calcarea Ars as it is called, helps in the affections of the heart and heat. Other therapeutic effects include:

Mind
Any emotional disturbance will lead to palpitations.
Desire for company
Great depression

Head
A headache, usually once a week, sometimes with numbness around ears which is better by lying on the side it is paining.
Weekly headache
A headache mostly around ears

Urinary System
Kidney region cannot tolerate pressure
Presence of albumin in urine, which is passed each hour.

Heart
Pain, palpitations and constrictive feeling in heart
Pain in the back region going until the arms.

Dose- As prescribed by the physician. Can be taken along with allopathic medicines.

Precautions
Maintain half an hour gap between food/drink/any other medicines and homeopathic medicine. 
Avoid any strong smell in the mouth while taking medicine e.g. camphor, garlic, onion, coffee, hing.

Side effects- none reported.

Use under medical supervision.