This section is from the book "A Practitioner's Handbook Of Materia Medica And Therapeutics", by Thos. S. Blair. Also available from Amazon: A Practitioner's handbook of Materia Medica and Therapeutics.
Senega. In moderate doses (syr., I f3; f.e., I5 I.) it is used in deep, hoarse cough, with mucous dues and free secretion. Scaly skin diseases are benefited by its continued administration, due to its diuretic and alterative properties.
In small doses of the @ the homeopaths claim results in catarrhal diseases of the eyes generally, but more particularly in blepharitis, muscular asthenopia, and opacities of the vitreous humor.