Our expert says:
Sorry to hear about this. You really need to call your prescribing doctor for advice, as he knows your case in detail ; and thus would be in a better position to consider whether there are other likely causes than the change in medications.
Officially, as both serlife and serdep are supposed to be clinically identical forms of the active ingredient sertraline, there should be no difference in the effects and side-effects of these two. The time-scale isn't entirely clear, but though the experiences you describe might follow sudden stopping of the medication, if the new preparation was simply a bit weaker, it shouldn't produce such symptoms rapidly.
At times, especially, I think, around this time of year, there are sudden episodes of particular drugs not being available in many pharmacies, something I find exceedinly suspicious. It seems to be related to hoarding of some drugs somewhere in the supply chain, anticipating a price rise, so that higher profits can be made after the price has gone up. Of course I hope this is not so, but I have run across it more often than I like.
Maybe the pharmacy in such cases might, as in your case, suggest a substitute from the prescribed med on which you are settled, but perhaps this should only be enough to last until a new supply of the usual med is available. And the system ought to allow highly accurate prediction of when new supplies will be available, and indeed to prevent ever running out of any such products.
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