The study of medicinal drugs derived from plants or other natural sources is called...
pharmacology
phytology
pharmacognosy
phytopharmacy
The American Society of Pharmacognosy defines pharmacognosy as "the study of the physical, chemical, biochemical and biological properties of drugs, drug substances or potential drugs or drug substances of natural origin as well as the search for new drugs from natural sources".
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Answers by country
pharmacology
phytology
pharmacognosy
phytopharmacy
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Pakistan
20
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31
India
19
Poland
1051
Germany
51
Greece
12
Austria
16
the United Kingdom
25