Finding the right antidepressant

Each person reacts differently to a particular antidepressant. Some people may be more likely to have certain side effects. Because of this, one antidepressant may work better for you than another. When choosing an antidepressant, your healthcare professional considers your symptoms, any health issues you have, other medicines you take and what has worked for you in the past.

Genes passed down in families may play a role in how antidepressants affect you. For some people, blood tests, where available, may offer clues about how their bodies may respond to a particular antidepressant. But other things besides genetics can affect your response to medicine.

It may take several weeks or longer before an antidepressant has a full effect. It also may take several weeks or longer for initial side effects to ease up. Your healthcare professional may recommend dose changes or a different antidepressant. With patience, you and your healthcare professional can find a medicine that works well for you.