Health knowledge : a thorough and concise knowledge of the prevention, causes, and treatments of disease, simplified for home use . ions.The infusion ismade by addingtwo teaspoonfulsof the drug to a pint of water. Specific is a term used in various ways. It is applied toremedies which appear to have a definitely curative effect incertain diseases, as, for example, to salicylate of soda, whichis said to be specific in rheumatism, or to quinine, which is aspecific for ague. Again, it is applied to bacteria and otheragents which form the chief cause of certain diseases, thoughthere may be other m
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Health knowledge : a thorough and concise knowledge of the prevention, causes, and treatments of disease, simplified for home use . ions.The infusion ismade by addingtwo teaspoonfulsof the drug to a pint of water. Specific is a term used in various ways. It is applied toremedies which appear to have a definitely curative effect incertain diseases, as, for example, to salicylate of soda, whichis said to be specific in rheumatism, or to quinine, which is aspecific for ague. Again, it is applied to bacteria and otheragents which form the chief cause of certain diseases, thoughthere may be other minor contributing causes; for example, the comma bacillus is the specific cause of cholera, the acarusparasite is the specific cause of the itch. The term is also usedto designate diseases that have an identity of their own, aredue to a definite cause, and do not consist merely of a groupof symptoms; for example, scarlet fever, measles, typhoid fever, are specific as compared with vague ailments such as enlarge-ment of the glands in the neck, diarrhea, or dyspepsia. Theword *specific is also used as a term for venereal disease.. striped Ald»r 1216 MATERIA MEDICA Sulphates are salts of sulphuric acid, and their action anduses vary much according to the metal with which the acid iscombined. The sulphates of the heavy metals, which are solu-ble in water, viz., the sulphates of iron (green vitriol), zinc(white vitriol), and copper (blue vitriol), have a powerfulastringent action; while sulphates of the alkalies, viz., the sul-phates of sodium, potassium, and magnesium (Epsom salts), are used as saline purgatives. Sulphonal is an artificially prepared substance which is white, odorless, tasteless, and dissolves readily in warm water or inalcohol. It has a depressing effect upon the higher nervouscenters in the brain and therefore acts as a hypnotic, though ithas practically no eflFect upon the vital centers or spinal cord, and therefore is not a dangerous remedy like many other hyp-noti