Antidepressants: What the First Eight Weeks Really Look Like

A great many people who could have been helped by an antidepressant stop taking it within two weeks. Almost always for the same three reasons, all of which are manageable if someone tells you about them first.

Week one and two: side effects arrive before benefit

This is the crux of it. Side effects tend to show up in the first several days. The benefit typically takes several weeks. So the early experience can be all cost and no return, which feels like proof the medication is wrong.

Common early effects include nausea, headache, feeling wired or oddly flat, and disturbed sleep. Most settle within one to two weeks.

Weeks two to four: the first real signs

What lifts first is usually not mood. It is sleep, appetite, and the sheer effort everything takes. People often notice they are doing slightly more before they notice feeling better. Others around you sometimes see it before you do.

Weeks four to eight: the actual test

This is the window in which a fair judgment can be made. If there has been no meaningful change by six to eight weeks at an adequate dose, that is useful information, not failure. It usually means adjusting the dose or switching, and the second choice frequently works when the first did not.

Three things worth knowing at the start

• Do not stop abruptly. Most of these are stopped by tapering, and stopping suddenly can produce genuinely unpleasant discontinuation effects that get mistaken for relapse.
• Report side effects rather than enduring them. Sexual side effects in particular go unmentioned constantly, and there are usually options.
• Tell your provider about every other medicine you take. Interactions are real and are easy to plan around when known.