是藥三分毒

是药三分毒
shìyàosānfēndú
every medicine has its side effect

CEDICT

all medicine has its side effects

Wiktionary

所有藥物均有其副作用

維基詞典

Entry Composition

=1 是 shì
  1. to be (followed by substantives only)
  2. correct; right; true
  3. (respectful acknowledgement of a command) very well
  4. (adverb for emphatic assertion)
=1 是 shì variant of 是 shì
2 藥 yào
  1. medicine
  2. drug
  3. substance used for a specific purpose (e.g. poisoning, explosion, fermenting)
  4. to poison

classifiers: 種, 服, 味
3 三分 sānfēn
  1. somewhat
  2. to some degree
4 毒 dú
  1. poison
  2. to poison
  3. poisonous
  4. malicious
  5. cruel
  6. fierce
  7. narcotics