Question

ointment base having Ph​

Answer 1

Answer:

Ointments prepared by incorporating five per cent ethyl aminobenzoate in Hydrophilic Ointment U. S. P. were buffered at different pH values ranging from 3.5 to 10. ... The optimum activity was found to be close to the pH of rat skin and decreased markedly in ointments having a higher or lower pH.

Answer 2

Answer:

Ointments prepared by incorporating five per cent ethyl aminobenzoate in Hydrophilic Ointment U. S. P. were buffered at different pH values ranging from 3.5 to 10. ... The optimum activity was found to be close to the pH of rat skin and decreased markedly in ointments having a higher or lower pH.