What should be used in a mouth ointment containing 0.05% betamethasone: the propionate or the alcohol form?

What is the value of so-called "already coated" or enteric-coated hard gelatin capsules?

How can the discoloration that occurs after one day in a solution of 1% resorcinol, 1% erythromycin, 25% isopropyl alcohol, and water up to 200 ml be prevented, given that erythromycin in isopropyl alcohol creates an alkaline environment that causes the resorcinol to discolor?

What causes the difference in texture in a dermatological preparation consisting of 6.6 g lactic acid DL, 80.7 g propylene glycol, 38 g glycerin, 7.5 g Lanette N, 7.5 g sweet almond oil, and PEG 400 up to 150 ml, where 1.5 g cetomacrogol 1000 was added for stability, given that using regular lactic acid resulted in a cream-like product while using lactic acid DL resulted in a product more similar to an ointment?

What is the best way to prepare an ointment containing 10% urea and 8% lactic acid in Paneucerin cum aqua to prevent separation, given that the mixture separates immediately with Paneucerin cum aqua and fails to thicken when using a self-made base of Eucerin and water, and would an alternative ointment base be more suitable?

What is a formula for preparing probe lubricant in large quantities that can be used to both lubricate and disinfect probes?

How should a suspension containing co-trimoxazole be prepared?