
A composition match, not medical advice.

Sensodent KF Cavity Protection Dental Gel 75gm contains Potassium Nitrate 5% w/w + Sodium Monofluorophosphate 0.7% w/w, as a toothpaste. It is made by Indoco Remedies Ltd.
No, it is sold over the counter. Ask a doctor or pharmacist if you are unsure whether it suits you.
Yes. Potassium Nitrate 5% w/w and Sodium Monofluoro Phosphate 0.7% w/w Toothpaste Gel (Fresh-Mint Flavour) is a Jan Aushadhi medicine with the same salt, the same strength and the same form. On JanAushadhiOnline it costs ₹32.81 for 100 gms (₹0.3 / gm), against ₹1.6 / gm for Sensodent KF Cavity Protection Dental Gel 75gm at its printed MRP — 79% less per gm. Ask your doctor before changing a brand.