What is the best way to prepare the following formula: lidocaine HCl 0.1%, benzocaine 0.6%, phenol 1%, menthol 1%, and basic lotion up to 250 ml?

What is the recommended procedure for preparing a veterinary formulation consisting of 2 g phenobarbital and raspberry syrup up to 200 ml, given that dissolving the phenobarbital in ethanol and then adding the raspberry syrup results in the formation of small crystals, even after heating the solution or adding a small amount of citric acid?

When preparing a revulsive cream containing 6 g mephenesin, 6 g glycol salicylate (replacing amyl salicylate), 600 mg methyl nicotinate, 12 g cetyl alcohol, 1.2 g sodium lauryl sulfate, 6 g Cetiol, 3 g propylene glycol, and water up to 60 g, why does the cream become flaky after adding the glycol salicylate-methyl nicotinate mixture and break after adding the mephenesin-propylene glycol mixture, and would replacing the cetyl alcohol (originally emulsifying wax in the NF formula) with Alcohol Cetylicus et Stearylicus Emulsificans A improve stability?

What is the best way to dilute Diprosone cream: by incorporating the corticosteroid into a mixture of cetomacrogol cream (O/W) and cold cream (W/O), or is it better to use only cold cream, considering that current legislation requires the use of the raw material instead of the specialty product?

What is a suitable preparation method for a gel that contains 3 g of caffeine and 3 g of liquid extract of fucus per 50 g?

Is this composition, created in my internship pharmacy, suitable as a house preparation: Menthol, Camphor, Lidocaine base, Hydrocortisone, Antiseptic alcohol, and Carbopol gel up to 30g to make a gel?

What is the explanation and solution for the formation of a pink flocculent precipitate when 5 ml of a 5% Hibitane specialty is added to a 0.5 l bottle of physiological serum to create a compatible disinfectant for rinsing deep wounds, after mercury, alkalies, thiosulfate, silver, and hydrogen peroxide were already identified as incompatible?