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), and thus should be used with extreme caution. It is on this account that we have omitted some of its preparations. The best antidote for opium is camphor.
701. Antispasmodics
Antispasmodics are medicines which possess the power of overcoming the spasms of the muscles, or allaying any severe pain which is not attended by inflammation. The class includes a great many, but the most safe and serviceable are ammonia, assafœtida, galbanum, valerian, bark, ether, camphor, opium, and chloroform; with the minerals, oxide of zinc and calomel.
702. Ammonia
Ammonia, or Sal Volatile, is an antispasmodic antacid, stimulant and diaphoretic.
Used externally