How can a rectal solution of 20 mg/100 ml prednisolone be prepared?

Is it feasible to compound a 12.5 mg progesterone preparation in a pharmacy by mixing the raw material with MCT oil and filling capsules using a syringe, as research suggests?

What is the conversion factor based on molecular weight for using naphazoline hydrochloride instead of naphazoline nitrate in 1/1000 nasal drops?

What is the recommended preparation method for 100 ml of a hair loss lotion containing 5% minoxidil, 1% finasteride, 0.1% caffeine, and 0.01% biotin?

Is it possible to prepare a mouthwash according to an ENT specialist's prescription containing 300 mg salicylic acid, 10 mg vanilline, 5 ml ethanol 96%, 20 ml sorbitol, and water up to 100 ml, will this formulation cause irritation, and should the vanilline be omitted since it is unavailable?

Is there a formulation for chlorhexidine dusting powder that can serve as a replacement for Astrexine?

Regarding the TMF formula for omeprazole for children, if a pediatrician requests using 0.4 g instead of 0.2 g of omeprazole, can this amount be doubled without affecting the stability of the preparation?