Below are the main rubriks (i.e strongest indications or symptoms) of Muriaticum Acidum in traditional homeopathic usage, not approved by the FDA.
Tension and pain on the sternum.
Bursting pain in chest; pain as if beaten.
Stitches in chest, and at heart, when taking a long breath and on violent motion; burning stitches.
Breathing deep, groaning; moaning; deep sighing.
Breathing seems to come from the stomach.
Short breath, with rattling after drinking, talking or coughing.
Dyspnoea and constriction of chest. θ Whooping-cough.
Oppression across the chest (evening).
Heart and pulse
Palpitation of the heart felt in the face.
Stitches in heart.
Pulse slow and weak, sometimes intermitting; slow during day, more frequent at night.≡ more ...