Paroxetine is an antidepressant used for various conditions beyond everyday stress, including anxiety, panic, obsessive symptoms, or other medical reasons. You should only take it if it was specifically prescribed for you by a doctor. Regarding your hair loss supplement containing vitamins and minerals, it is generally safe to take alongside paroxetine. There are no known harmful interactions between this medication and standard hair multivitamins. However, please consult your prescribing doctor to understand the exact reason they recommended this medication for you and to confirm that this combination is suitable for your specific health profile.