We have a preparation for melatonin 20 mg pgu, dispense 60 capsules; is this a common dose?

What is a suggested formula for Malarone syrup for children, and in which vehicle should it be suspended?

What is the cause of precipitation when adding peppermint spirit to a concentrated fluoride mouthwash containing 2500 mg sodium fluoride, 4000 mg methylparaben, 250 mg sodium saccharin, and 50 ml peppermint spirit in water up to 500 ml, and would using peppermint oil instead of the spirit resolve this issue or result in the same problem?

How can 1.5 g of prednisolone be added to 25% benzyl benzoate emulsion TMF?

How can finasteride 0.25% and minoxidil 7% be dissolved in TrichoSol, given that the Fagron website recommends using 10% ethoxydiglycol to dissolve the finasteride but this product is currently unavailable?

Given that ethanol at 15% m/m has a preservative effect, can 96% ethanol for oral use be used in a gel for external application, or is it also possible to use 70% or 90% ethanol denatured with isopropanol?

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