Consult any ayurveda physician you wl get benefit definitely avoid self medication

Give proper history if you have any problem. What symptoms you have.

Zandu pancharista helps in digestion, and if you're finding benifits you can continue, but long term avoid, much much better than the other two

No side effects

Good that u shared new research topic to establish efficiency against newer drug regime. Pan 40 blocks acid secretion and pancharishtham boosts quality diagestion n mobility availing boost for dhatu sanhanan. It may be new for u as these are ayurvedic terminology. Dose 10ml twice a day after food for 7 to 21days as over the counter drug else it has its own consequences like how ppi i.e Scientists proved Pan 40 causes low bone mineral density and kidney trauma vary person to person in varing degree

Take any ayurved medicine after proper ayurveda way diagnosis only consulting ayurved consultant

Medicines as per your condition...it varies in each person

Consult Ayurveda physician for proper diagnosis and root cause