Phosphorus: during intervals to lessen tendency.
Potassium Bromide: in full doses will relieve the spasm.
Pyridine.
Quinine: when any malarious taint is present.
Spermine.
Spirit Ether.
Strophanthus.
Strychnine: sometimes useful in mild cases in very small doses.
Tonics.
Turpentine Oil: locally to the chest during paroxysms.