It is unfortunate that your friend experienced such side effects. Being an allopathic Psychiatrist, I am not entitled to opine about Ayurvedic options. However, there are many options available within allopathy which can help your friend. For this, a deeper understanding of his symptoms, as well as, the specific details of side effects is required. Psychotherapy can be of great help in treatment of anxiety disorders without need of medications.
Next Steps
Consult a Psychiatrist with details.
Health Tips
Ayurvedic medications may not always be free of adverse effects.