The differential indications will be found in the materia medica for
each of the remedies. A generalizationcan be made based upon
Inula having stimulating expectorant effects whilst Verbascum
is more of a relaxing expectorant. Tussilago is the best of the three
Maintenance of Respiratory Health
Much of the disease commonly associated with both upper and lower respiratory
systems is preventable. Air quality is the key. By avoiding particulate
air pollution and chemical irritants such as sulphur dioxide, many of the
disabling conditions of the lungs would not develop. Thus smoking, both
active and passive, as well as urban and industrial pollution are important
issues for the therapist and the patient. This need not be developed
here, but anyone concerned about the health of their lungs should become
active in Friends of the Earth!
Patterns of Disease
There are five primary symptoms in this system, and whilst each may be treated
effectively with herbs, they must be seen as signposts to the underlying
pathology. These symptoms are
Physiological Dyspnoea: This is the commonest type of breathlessness
and is associated with physical exertion. Ventilation is increased and maintained
through an augmented respiratory stimulus provided by metabolic and other
factors. Dyspnoea is common during acute hypoxia (oxygen lack), such
as at high altitudes, where the increased respiratory stimulus is in part
the effect of arterial hypoxia on the carotid bodies. These are receptor
sites in the carotid arteries that monitor the concentration of gases in
Pulmonary: The two major causes here are a restrictive
defect which lessens the lungs or chest wall from efficient movement (e.g.
pulmonary fibrosis), or an obstructive defect which increases resistance
of flow in the airways (e.g. asthma)
Cardiac: In the early stages of heart failure the availability
of oxygen to the tissues of the body via the blood fails to keep pace with
increased metabolic need during exercise. As a result respiration is increased
because of tissue and cerebral acidosis, causing hyper-ventilation. In later
stages the lungs are congested are congested and edematous, the capacity
of the stiff lungs is reduced and the effort needed to breath is increased.
Cardiac asthma is a state of acute respiratory insufficiency often
very similar to other types of asthma but it originates from left ventricular
failure. Orthopnea, or breathing discomfort that occurs while laying
flat, is usually symptomatic of a cardiovascular basis to dyspnoea.
Circulatory (air hunger): is often a medical emergency due to
lack of oxygen following blood hemorrhage. It may occasionally be associated
Chemical: related to uremia or diabetic acidosis.
Central: connected to cerebral lesions.
Psychogenic: Know as `hysterical over breathing'.