Homeopathic Materia Medica Keynotes by Dr. Henry C. Allen: Henry C. Allen (1836 – 1909) was an American homeopath & he founded the Hering Medical College and Hospital.

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Physostigma

Uncommon mental activity; cannot stop thinking. Vision dim; from blur or film; objects mixed. Pain after using eyes; floating black spots, flashes of light, twitching of lids and muscles of eyes (Agar.); mystagmus. Great prostration of muscular system; impaired locomotion (Gels.). Tremors or trembling of young persons from mental or physical disturbances. Idiopathic or traumatic tetanus; brought on or < by slightest breath of air from a person passing (Hyper., Lys., Nux, Strych.).

List of all Homeopathic Materia Medica: Dr. Clarke, Boericke, Farrington, Allen, Dunham, N M Choudhury, Nash,  Boger,  Lippe,  Mure,  Tyler,  Constantine Hering, Kent,  Homeopathic Materia Medica, Online Materia Medica