Has anyone else on sertraline experienced drug tolerance after months/years of being on it? I have been on 50mg of sertraline for about 11 months now, and it has been working amazingly. My panic is pretty much non existent and I hardly have any anxiety symptoms-when I do it’s very easy to deal with and goes away quickly.

However, the past two weeks or so I have been feeling heightened anxiety daily, not as bad as it was before I got on medication but bad enough to be noticeable and irritating. Is it possible that I built up a tolerance and need a dosage increase?? I have an appt with my doctor next week but I’ve just been wondering if this is happening because my body became tolerant to the meds. If this is true, will this keep on happening ?? Making me increase the dosage every time??