What is the recommended method to stabilize a cream containing 2 g urea, 0.3 g prednisolone, 1 g metronidazole, 1 g sodium lauryl sulfate, 10 g cetyl alcohol, 30 g liquid paraffin, 10 g yellow petrolatum, and water up to 100 g, given that the preparation currently results in a clear separation of two phases despite attempts to adjust the emulsifier amount and the addition of Arlacel 83?

Given that there are two types of morphine ampoules available on the market, one containing sodium metabisulfite as an antioxidant and the other containing methyl and propyl parahydroxybenzoate, is it permissible to mix these two types in a pain pump for palliative pain therapy?

How should one begin the preparation of 200 mg Vitamin D3 in cold cream q.s. to produce 100 g of an oily solution?

What is the shelf life of a self-prepared concentrated hydroxybenzoate solution and the resulting aqua conservans, given that a flow chart from the 2001 Medication Monitoring Comments suggests a 6-month period for both, despite the latter's logic regarding anhydrous and non-volatile substances being questioned?

Is there a standardized or tested formula for preparing propranolol syrup, given that while the formula for the specialty Hemangiol does not appear difficult, few other formulas can be found?

What is a Becquart mouthwash, and can it be prepared as a magistral formula?

What is the appropriate amount of Vitamin C to add to a syrup containing 150 mg promethazine HCl, 100 mg pholcodine, 450 mg pseudoephedrine HCl, 3 g alcohol, 4 g raspberry aroma, and 150 cc Ventolin syrup to prevent both precipitation and the light blue discoloration of the raspberry aroma, considering that 0.5 g might be too much while 0.1% is suggested as sufficient?