How Long Do Antidepressants Take to Work?

One of the most common questions after starting an antidepressant is whether it should already be working.

Antidepressants generally don’t provide immediate relief. NIMH explains that they commonly take around 4–8 weeks to work, although individual experiences vary.

What Can Improve First?

Some people may notice improvements in:

• Sleep
• Appetite
• Energy
• Concentration

before they notice a significant improvement in mood.

What If It Isn’t Working?

Don’t change the dose or discontinue treatment independently. Your healthcare professional may evaluate:

• The amount of time you’ve taken it
• Your symptoms
• Side effects
• Other medicines
• Whether another treatment would be appropriate

Depression treatment can involve psychotherapy, medication or both.