How can a stable preparation be achieved for a prescription consisting of 100g Elocom cream, 5% urea, 1% menthol, and 200g cold cream or ava cream, given that the dilution of Elocom cream leads to an unstable product that always separates, even after the previously suggested addition of Arlacel?

What is the best way to prepare Medrol in a syrup or solution for a prescription of Medrol 8mg/5ml, with a dosage of 8mg twice daily for 3 days?

What is the recommended method for preparing a 0.25% dutasteride liposomale gel for a 40g prescription, and are there any commercially available liposomal gel bases that can be used for this purpose?

Why does a cream containing 5g salicylic acid, 0.05g betamethasone dipropionate, 5g Tween 80, and Unguentum emulsificans cum aqua up to 100g turn purple after standing for one hour?

Will adding Tween 80 (2.5%) and Tween 20 (2.5%) to a formula containing Triamcinolone acetonide (0.1%), Chloramphenicol (2%), and Eucerine cum aqua (ad 100%) cause the cream to break, and what is the specific function of these O/W emulsifiers when added to a W/O cream?

What is the cause of the discoloration from dark pink to colorless within a few hours in a 4 mg/mL methadone syrup containing artificial raspberry flavor (2.25 g raspberry fantasy aroma, 1.2 g methadone hydrochloride, 20 mL distilled water, 150 mL preserved sugar syrup, and distilled water ad 300 mL), given that the pH is between 5 and 6, the taste remains unchanged, the preparation is stored in a brown 300 mL bottle in a dry, dark place at room temperature, and changes to the preparation method have not resolved the issue?

What are the stability problems of a solution containing 3 grams of Phenobarbital sodium and purified water up to 300 cc?