Is it necessary to filter a 0.3 molar sodium citrate solution through a 0.22µ filter before filling, given that the protocol was adopted from another hospital but the solution is being filled into non-sterile bottles for oral consumption?

Is it possible to formulate a gel containing 25% magnesium sulfate and 1% lidocaine HCl, similar to the active ingredients in the French specialty Osmogel, for a client to use on her fingertips, given that 6% HPMC failed to thicken and using lidocaine base in an ointment base did not provide sufficient absorption?

What is a recommended formula for a vaginal douche based on sodium lauryl sulfate, intended for its antiviral properties against the papillomavirus, and what are the suggestions regarding the pH buffer and preservative for this magistrial preparation?

A patient has requested the preparation of an ozone cream for a fungal nail infection; is this a known treatment, and how should it be prepared?

Why are phosphate and Na2EDTA added to a 5 mg/ml prednisolone sodium phosphate (PDNa) syrup, what does the abbreviation (s) added to Na edetas 2 aqua signify, and what is the proper preparation method for a formula containing 0.74g prednisolone sodium phosphate, 0.10g disodium phosphate dihydrate, 0.21g sodium dihydrogen phosphate dihydrate, 0.10g sodium edetate (s), 25.80g non-crystallizing sorbitol 70%, 0.10g natural-like banana aroma, and aqua conservans up to 100ml (107.1g)?

Which base would you recommend for a cream containing 2% amitriptyline for neuropathic pain?

What are the compounding options for a daily dose of 150,000 IU of vitamin A in oil form, considering both a diluted solution of vitamin A palmitate (1.5 million units/gram) that may have lower treatment adherence due to taste and capsules filled with an oil solution (similar to Pfizer) which offer easier intake but at a potentially higher cost?