Bactrim(R) antibiotic suspension contains antibacterial active ingredients trimethoprim and sulfamethoxazole. It also contains dispersible cellulose, methyl hydroxybenzoate, propyl hydroxybenzoate, sorbitol solution, polysorbate 80, banana flavour, vanilla flavour and water.[Fill in the blank] Using this example, briefly describe SIX key excipients necessary to formulate an oral suspension. In your answer, indicate the function of each excipient and how they contribute to safety, stability and effectiveness of this product.[Fill in the blank] Briefly explain why it is desirable to have an oral liquid formulation where the active drug is either all in solution or all suspended, and what might be the therapeutic consequences if the drug is partially solubilised and partially suspended.[Fill in the blank]多项填空题