This section is from the book "Practical Materia Medica And Prescription Writing", by Oscar W. Bethea. Also available from Amazon: Practical Materia Medica and Prescription Writing.
Latin, Mentha Viridis
Eng., Spearmint. The dried leaves and flowering- tops of Mentha spicata.
60 grains (4 Gm.).
Official Constituent and Preparation.
Eng., Oil of Spearmint. A volatile oil. Average Dose.-3 minims (0.2 mil).
Eng., Spearmint Water. An aqueous, saturated solution of Oil of Spearmint.
4 fluidrachms (I5 mils).
Eng., Spirit of Spearmint. Represents 10 per cent. of the oil and 1 per cent. of the crude drug. Average Dose.-30 minims (2 mils).
Carminative, refrigerant, etc. Less active than peppermint.
Seldom prescribed.
 
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