In the United States, very few combination medications relevant to mental health are available: – Buprenorphine/ naloxone (Suboxone®) – Naltrexone/ bupropion (Contrave®) – Olanzapine/fluoxetine (Symbyax®) – Phentermine/topiramate (Qsymia®) In other countries, several more combination medications are available, e.g., haloperidol plus trihexyphenidyl (an anticholinergic). One might think that if a patient needs two medications, combining them…