Effect of DNA on medication metabolism

This is a long but very important read for anyone taking medications.

https://www.theglobeandmail.com/canada/article-dna-on-drugs-how-genetic-tests-could-make-prescriptions-more-precise/

My wife informed me of this this evening. Thanks. I'm on it. Why not?

I have suspected this for a while and have been reading about it since my hubby passed away in 2015 of cancer. He got absolutely NO pain relief whatsoever from Buprenorphin or Fentanyl or Methadone or Morphine when he needed it most. Not at low doses and not at extremely high doses or anything in between. I warned his sons then and I've sent them this recent development as well.
What you don't know can hurt you.

For $600US anyone can get their DNA profile done in Guadalajar on what drugs are most effective and which are not and which are dangerous to take.

A link or further contact information on where and how would be appreciated Gamina.