Coca, Erythroxylon coca.

The Divine Plant of the Incas-but the Spanish priests denounced it as "un delusion del demonio" The mountaineer's remedy. Useful in a variety of complaints incidental to mountain climbing, such as palpitation, dyspnoea, anxiety and insomnia. Exhausted nervous system from physical and mental strain. Caries of teeth. Loss of voice.-Give 5-6 drops, every half hour, two hours before expected demand on voice. Nocturnal enuresis. Emphysema (Quebracho).
Mind.--Melancholy; bashful, ill at ease in society, irritable, delights in solitude and obscurity. Sense of right and wrong abolished.
Head.--Fainting fit from climbing mountains. Shocks coming from occiput with vertigo. Noises in ear. Headache with vertigo, preceded by flashes of light. Like a band across forehead. Diplopia. Tongue furred. Headaches of high altitudes. Tinnitus.
Stomach.--Peppery sensation in mouth. Longing for alcoholic liquors and tobacco. Great satiety for a long time. Incarcerated flatus; rises with noise and violence, as if it would split the oesophagus. Tympanitic distention of abdomen. No appetite but for sweets.
Heart.--Palpitation, with weak heart and dyspnoea.
Male.--Diabetes, with impotency (Phos ac).
Respiratory.--Hawking of small, transparent pieces of mucus. Weak vocal cords. Hoarseness; worse after talking. Want of breath, short breath, especially in aged athletes, and alcoholic users. Haemoptysis. Asthma, spasmodic variety.
Sleep.--Can find no rest anywhere, but sleepy. Nervousness and nightly restlessness during teething.
Modalities.--Better, from wine; riding, quick motion in open air. Worse, ascending, high altitudes.
Relationship.--Compare: Ars; Paulin; Cyp; Chamom. Antidote: Gels.
Dose.--Tincture to third attenuation.

Boericke's Materia Medica, 1901, was written by William Boericke. Excerpt: The Tinctures.