Hydrocyanic Acid. This is the head remedy for cardiac cough. It should be tried first.

Digitalis. Cough with difficult respiration, pulse irregular and intermitting, face deathly pale.

Spongia. Dry, barking cough, from a sense of plug in the throat; tickling in larynx.

Naja. Gasping at throat with a sense of choking. Irritating dry cough due to heart troubles. Sticky mucus and saliva.

Aurum Mar. Heart cough.

Oxalic acid. Cardiac cough on slightest excretion, chocking feeling in larynx, tickling in larynx.