1- Alphabetical Classification :

Some of the pharmacopoeias , dictionaries and reference books which classify crude drugs according to this system are as follows :

1- Indian Pharmacopoeia .

2- British =

3- British Herbal =

4- United States = & National Formulary

5- British pharmaceutical Codex

6- European Pharmacopoeia

Notes : No. ( 2 , 4 , ) these are arranged in English , ( 6 ) arranged according to their names in Latin .