Mattie Grey, aged 40 years, has depression that is treated with fluoxetine. He is also overweight, with a body mass index of 30. In talking with his friends, he finds out that phentermine is an...

Mattie Grey, aged 40 years, has depression that is treated with fluoxetine. He is also overweight, with a body mass index of 30. In talking with his friends, he finds out that phentermine is an effective medicine to encourage weight loss. Is a combination of fluoxetine and phentermine appropriate? Explain your answer.