What is the composition of potion magique, a preparation containing nystatin, lidocaine, and neomycin sulfate?

What is the preparation method for a tretinoin oral gel or paste?

What is the recommended preparation method for a nasal ointment containing 150 mg eucalyptol, 300 mg sodium borate, 60 mg ephedrine HCl, 10 g sweet almond oil, and 20 g vaseline, and can these ingredients simply be mixed together by combining the eucalyptol, ephedrine, and sodium borate before adding the almond oil and vaseline, given that no adrenaline is included in the formula?

Can I fill a carbomer gel containing 25 mg of tretinoin in a total volume of 50 g into a metal tube?

What is the best alternative for 3 ml enema bottles, which are no longer available from any suppliers, for the preparation of rectal tubes containing either 500 mg chloral hydrate or 10 mg Valium?

How can a compounded preparation containing 8% clobetasol propionate in collodion be formulated?

What is the status of the rectal absorption of metronidazole as an alternative due to its unpleasant taste?