èr lǜ běn àn běn yǐ suān nà
diclofenac sodium (non-steroidal anti-inflammatory drug used to reduce swelling and as painkiller)
also called voltaren 扶他林
二
èr
two
氯
lǜ
chlorine (chemistry)
苯
běn
benzene
胺
àn
(chemistry) amine
乙
yǐ
second of the ten Heavenly Stems 十天干[shi2 tian1 gan1]
酸
suān
sour
钠
nà
sodium (chemistry)