Clarke gives the toxic effects of homeopathy drug Mentha Piperita and its therapeutic uses in non-toxic doses in his book The ABC Manual of Materia Medica and Therapeutics, published in 1901….



      Relieves pain and irritation of neuralgia, rheumatism, colic, eczema and pruritus. Reduces the inflammation of hay- fever, boils, bites of insects, etc.


      Spiritus menthae piperitae, 2-15 m.

Oleum menthae piperitae, 1-3 m.

Menthol, 1/2 gr., in pill or il.


      Neuralgia. (Wet bit of cotton with the oil and apply and cover with gutta percha tissue).

Muscular rheumatism. (Paint the part with the oil).

Irritating, painful eczema. (Two to ten grains of menthol to an ounce of water or of ointment).

Pruritus. (As for eczema).

Earache. (Menthol twenty grains oil two drams. Apply on cotton).

Colic. (Spirits of peppermint).



Hay-fever. (Ten to twenty per cent. Solution in the nostrils).

Coryza. (As for hay-fever).

George Hardy Clark
Clark, George H. (George Hardy) 1860-1941 was the author of: Homeopathic Treatment of Asthenopia; Lee and Clark's Cough and expectoration : a repertorial index of their symptoms; The A B C Manual of Materia Medica and Therapeutics; A system for the care and training of children; The Black Plague and Its Control.