Comparative pharmacology and toxicology of tramadol and tapentadol.

Bibliographic reference: 

Faria J., Barbosa J., Moreira R., Queirós O., Carvalho F., & Dinis-Oliveira RJ. (2018). Comparative pharmacology and toxicology of tramadol and tapentadol. Eur J Pain. 2018 Jan 25.

Bibliographic link: 
https://onlinelibrary.wiley.com/doi/abs/10.1002/ejp.1196