What is the shelf life and the source of this information for an aqua conservans concentrate (8g methylhydroxybenzoate, 2g propylhydroxybenzoate, 90g propylene glycol), a Lugol's solution (iodine, potassium iodide, water), and an acetic acid solution (2% or 3% in water), and are there specific raw materials incompatible with the aqua conservans concentrate or with mannitol?

How can a shampoo containing 10% LCD, 0.1% triamcinolone acetonide, and 5% salicylic acid in shampoo simplex (up to 50 ml) be prepared to avoid a difficult-to-disperse precipitate, considering that a previous attempt using cetomacrogol resulted in turbidity after cooling?

At the request of a dermatologist: can clobetasol propionate be prepared in a nail polish, and if so, in what concentration?

Is Efudix an ointment or a cream, given that the packaging labels it as an ointment while a previous answer describes it as an O/W cream, and what is the exact composition and quantity of the ingredients, since the classification may depend on the amount of water in the preparation?

Should chloroquine phosphate be enteric-coated when it is part of a mixture containing chloroquine phosphate, magnesium aspartate, and potassium aspartate?

How can a pharmacist magistrally prepare an eye drop solution requested by an ophthalmologist as a replacement for the unavailable Naphcon Forte (similar to Minhavez), given that the original composition per ml consists of 1 mg naphazoline hydrochloride, 0.1 mg benzalkonium chloride, boric acid, sodium chloride, potassium chloride, disodium EDTA, sodium carbonate monohydrate, concentrated hydrochloric acid, and water?

Can aciclovir and zinc sulfate be combined in a cold sore cream, and which base would be suitable for this combination?