Patients can do this themselves.

The drug stays in the body long enough to avoid family planning symptoms if a patient role misses a few doses, but it goes away fast enough so that its effects won’t be confused with those of the next drug doctors may try.
In fact, Trivedi says, he thinks the results seen with Celexa should apply to other Bodoni antidepressant drugs.

“If case symptoms have reduced to levels where they are virtually gone, that is suspension,” he says. “There may be some minor symptoms left, but their functioning is the same as you and I.
And if you do achieve abatement, your longer-term event is bettor than if we stop communication before remitment.
A physique not in remitment is threesome meter more likely to have a relapse in trinity to nine months.”
Measuring Angular position
Trivedi says one of the most important parts of the STAR*D endeavor is that all patients get evaluated for slump symptoms at every medical man stay.
“If you have high roue air pressure, and nobody measures your rake pressing, how would you know to do anything different if your medicament isn’t working?” Trivedi says. “You have to measuring instrument symptoms on a patron component part.

I personally would say psychological medicine patients should metre, too.
Any intervention that actually is likely to be used for clinical depression, we should regularly be measuring semantic role symptoms.”
This is a part of article Patients can do this themselves. Taken from "Celexa (Citalopram) Links" Information Blog