How can a stable, clear solution be prepared for a Dalacin lotion substitute containing 5 g salicylic acid, 600 mg clindamycin (as 712 mg phosphate), 6 g propylene glycol, 200 g purified water, and 120 g isopropyl alcohol, given that a precipitate forms which is suspected to be caused by the incompatible pH requirements of the acid and base components, and considering that the solution becomes clear after adding a small amount of base?

What is the usual dosage of Vitamin E in a cream for external use, given that while the doctor prescribed 50,000 IU per 30g, using 0.89 IU/mg as the unit for alpha-tocopheryl hydrogen succinate results in a calculation of 56g?

What is the best way to prepare a cetamacrogol lotion containing urea, erythromycin, salicylic acid, and coal tar solution (LCD), given that a colleague experienced an emulsion break when attempting to incorporate salicylic acid into the fatty phase, and would a rationale involving dissolving urea in the water phase to prepare the lotion, suspending erythromycin and salicylic acid in that lotion, and finally mixing in the LCD be advisable, or is there a better alternative?

What is the composition of the generic version of Largactil suppositories, specifically the amount of chlorpromazine base per suppository?

What is a good formula for a suspension containing 250 mg/5 ml of clioquinol intended for the treatment of intestinal parasites?

How should a magistral syrup be prepared for a patient who needs 40 mg of pantoprazole but requires a liquid form instead of Pantomed 40 mg tablets due to swallowing problems, and is it appropriate to use the omeprazole syrup formula with NaHCO3 for this purpose?

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