What alternative is available for Oleosorbate 80, which was used by a patient with a tracheotomy, given that both it and Cerumenol drops are currently discontinued and no longer on the market?

How should one prepare a sulfur suspension containing 20 g colloidal sulfur, 30 g camphorated alcohol, 9 g resorcinol, 3 g lactic acid, 15 g zinc oxide, 30 g Carbowax 1500 (replaced by a 1:1 mixture of PEG 1500 and PEG 300), and 30 g propylene glycol with water up to 300 cc, considering the potential incompatibility between PEG and resorcinol and the fact that dissolving PEG in water does not yield an ointment; and should the final result be an ointment or a viscous liquid?

Is it possible to process amitriptyline hydrochloride and flupentixol dihydrochloride into a drinkable form for a patient with swallowing problems, and given that solubility is not an issue, what are the considerations regarding stability and pH?

What is the meaning of the abbreviation PLO ointment in the prescription "R/ Lidocaine 10% in PLO ointment, provide a 100 g tube," given that the abbreviation cannot be found in the literature?

What is the best way to prepare an ear drop containing 10 mg triamcinolone acetonide, 100 mg salicylic acid powder, 5 mg benzalkonium chloride, 5 ml antiseptic solution 94°, and purified water up to 10 ml, and given the incompatibility between benzalkonium chloride and salicylates, which preservative at what concentration should be used as a replacement, considering triamcinolone acetonide is insoluble in water and only slightly soluble in alcohol?

How should a pharmacist address the incompatibilities in a prescribed lotion for a 14-year-old boy containing 2,400,000 U nystatin, 2% erythromycin base, and 100 ml Locoid Crelo (hydrocortisone butyrate) to be applied once daily in the evening, given that erythromycin decomposes at the acidic pH of Locoid Crelo while hydrocortisone esters are unstable in alkaline environments, and should the dermatologist be informed to prevent such future prescriptions, especially considering the effectiveness of this combination and the additional oral nystatin syrup (2x2ml/day) already prescribed?

What is the shelf life of argyrol nasal drops prepared by dissolving 0.3g of argyrol in a heated mixture of 1.38g glucose and 26g distilled water, diluted to 30ml and stored in a brown bottle with a pipette, and specifically, for how long can these drops be used after the bottle has been opened for the first time?