A farmer's mental health

As a pharmacist working in a rural area you know your clientele very well and you have noticed that a regular client is not coming into the pharmacy as often as they once were. You meet this person shopping with his wife at a supermarket and on gentle questioning you find out that he is no longer taking his antidepressant medication and you feel he is becoming increasingly irritable. The next day his wife comes into the pharmacy and explains that she is worried about him.