Hello Friend, Good that you are seeking a help here. Medicine can sometimes help only in suppressing the emotions and provide temporary relief as well as cause side effects. In any psychic treatment, there will be recommendations of medicine as well as psychotherapy sessions, lifestyle changes, exercise etc to get long term solution.
In your friends case may be she may be following only the medications and that's causing such effects.
She needs to consult Psychologist to assess her current condition and get the appropriate recommendations
Next Steps
Feel free to reach out to me online through Practo app for further detailed evaluation and recommendation.