What product is meant by "BVDU" in this eye drop, given the following formula from the UZ: 7 mg BVDU, 107 mg boric acid, 0.56 mg borax, 0.7 mg benzalkonium chloride, and aqua up to 7 ml?

What are the cause and solution for the processing issues encountered when incorporating 4% erythromycin into RoC Dermato Adoucissant, which results in a broken appearance, or into RoC Purif-AC Reparateur Apaisant cream, which initially appears stable after triple-roll milling but completely breaks a short time later?

How can Remergon 10 mg be processed into a capsule, given that it is currently only available in Belgium as Solutabs, which presents a problem when prescribing compounded preparations?

How can a 1% chloramphenicol solution be prepared as sterilely as possible in 1 liter of physiological solution for a pressure ulcer, given that 1% is not soluble in water but might be in a boric acid-borax mixture?

Why does a pink discoloration, possibly due to the oxidation of salicylic acid, occur during the preparation of a solution containing 15 mg clobetasol propionate, 900 mg salicylic acid, 1 g hydroxypropylcellulose, 35 ml isopropyl alcohol, and water up to 50 g, even before the clobetasol is added, and how does this relate to the analogous formula in the FTM?

What is the reason for the following cream breaking, which contains 2g salicylic acid, 30mg clobetasol propionate, 36.72g white petrolatum, 4.08g polysorbate 80, 0.102g sorbic acid, and purified water up to 100g?

What is the best method to dissolve and incorporate urea into a preparation containing 5% urea, 40% salicylic acid, and flexible collodion up to 100 cc?