Go to doctor or consult on this platform and get yourself a prescribed medicine for your problem after giving a detailed history.
Why not this and that you get an admission in Ayurveda college and learn for 5 years you will get the answer.
Triphala tablet is different, triphala powder is different, triphala guggulu is different, triphala kwath / kashaya is different, each one has their own action and uses depending on the form of medicine.
Also constipation in vata prakruthi person is treated differently, in pitta different, in kapha different, if due to any other cause differently it should be treated.
Also triphala powder if you take with ghee you get different use, with water different, with honey different action.
Dose of powder too varies.
If you are vata prakruthi, constipated due to rooksha aahara, take triphala tablet then you will have stomach pain then don't blame Ayurveda.
Consult and get relief.
Health Tips
Ayurveda is a vast and deep knowledge. Never take medicine without consultation.