Well, I'm not sure about that. Antipsychotics don't work right away. Tranquilizers do. Antipsychotics, if they do work, work all the time. Tranquilizes only work for a short period of time and then wear off. If she took this as an antipsychotic injection, it would be during an emergency situation but she would have to take the shots for several months and then go on the medication for longer than that. If she's truly psychotic, that's a permanent condition and she would have to take medication for the rest of her life. If one is referring to an extreme reaction to trauma, that isn't really a psychosis, though one might describe it colloquially as a psychotic reaction because the behavior is that of one who is psychotic. She's probably using the term tranquilizer unscientifically, but if she was in a shock condition that simulates psychosis and might have indeed been put on an injection for fast relief of it. Whether that works or not, I have no idea, I'm not familiar at all with the drug. It's just to say, you wouldn't usually take an antipsychotic for just a month, but this wasn't a usual situation. My view is, what's she like? Judge people by who they are and how they are, not by a label. Doctors are allowed to use a drug approved the the FDA any way they want, even if it's not the approved use. Her docs felt this was the best and quickest fix. But no, it's not a tranquilizer in the scientific sense of that term. If she's truly psychotic, you'll know. It will break out. And as Mom says, you're young and dating and so you might want to gently have a talk with her and find out what she's like long term. And again, what drugs are approved for aren't necessarily what docs use them for, for better or worse -- sometimes it's for better and sometimes it's for worse. Peace.
https://www.medicines.org.uk/emc/product/6414/pil#gref It's also used for anxiety. :>) Her terminology of tranquilizer is probably related to that. Anxiety that has psychosis involved which yes, could result from a traumatic situation. The medication is an anti psychotic The good news she is taking it which means she wants to be better. I would talk to her about her mental health issues with no judgement. You can decide if it is too much for you to stick with since you are dating and not married but she will likely really appreciate being able to be honest with you and your listening. There is often some shame attached to mental health issues, unfortunately. Be there for her and it could be therapeutic for you both.