Talk:Pentazocine

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Isomerism is not expressed unequivocally

The illustrations are labelled as R and S isomers of pentazocine. In the text only (-) and (+) optical isomers are mentioned. It is not possible unambiguously bring together these isomers. — Preceding unsigned comment added by 2001:BB8:2002:2300:61EC:834C:9781:5CCC (talk) 08:28, 30 March 2017 (UTC)[reply]