Drugs causing depression Well, we have heard that there are so-called antidepressant drugs which could work well against depression. What if I say that there are drugs that cause depression too. Yeah, you have read it right. No need to rub your eyes and check again. Well, certain prescription drugs for the treatment of asthma, acne, malaria and other certain drugs side effects include depression or other mood disorders. There are certain other medications which could trigger mania( excessive elation of mood and energy) which is usually associated with bipolar disorder. Actually, Medications that cause depression alters brain chemicals in one way or other. Let us consider an example: There is a famous medicine named Montelukast is used regularly to prevent wheezing and shortness of breath caused by asthma in order to reduce the asthma attacks. Now this medicine works well for asthma but its side effects include depression, anxiety and suicidal thinking according to a resea...