list all viscosity enhancer in pharmaceutical formulation

1. Hydroxypropyl cellulose (HPC)

2. Carbomer
3. Hydroxyethyl cellulose (HEC)
4. Xanthan gum
5. Polyvinyl alcohol (PVA)
6. Sodium carboxymethyl cellulose (CMC)
7. Carbopol
8. Guar gum
9. Bentonite
10. Magnesium aluminum silicate