What is the cause of the precipitation that occurs over time when mixing a prescription from an ENT specialist consisting of 6 bottles of Ciloxan, 6 ampoules of Mistabron 600mg/3ml, 20 mg dexamethasone sodium phosphate, and 0.9% NaCl in aqua ad 80 ml (to be administered 8 ml twice daily with a Rhinoflow), and is it due to ciprofloxacin's instability in an alkaline medium or another factor?

What is the reason for sodium bicarbonate not dissolving in a preparation containing 1 g sodium salicylate, 20 g sodium bicarbonate, 50 g glycerol, and aqua menthae 3% BF V up to 300 g, given that despite frequent success, it is currently impossible to dissolve 20 g of sodium bicarbonate in 150 mL of water after rubbing it with 50 g of glycerol, even when heating the mixture in a microwave and dissolving the sodium salicylate separately in water?

How would you prepare the following magistral formulation: 1 g estradiol benzoate, 2 g minoxidil, 10 g propylene glycol, 20 g water, and spiritus 94° up to 100 g?

What is the recommended method for preparing a solution containing 0.03 g estradiol benzoate, 1 g prednisolone, 10 g glycerol, 15 g capsicum tincture, 20 g jaborandi tincture, 120 g camphorated spirit, and water up to 300 ml?

What is the best preparation method for a homogeneous dental solution consisting of 0.125 g dexamethasone, 36.705 g phenol, 32.410 g formaldehyde, 29.460 g guaiacol, and excipients up to 100 g, packaged in sterile 13 ml vials, ensuring it does not result in two phases or precipitation?

What is the best way to prepare a formulation containing 90 g Burow's water, 4 g zinc sulfate, 10 g chlorobutol, and aqua up to 500 ml, given that dissolving chlorobutol in hot water or alcohol results in crystallization upon cooling or addition of water, and combining the ingredients leads to a milky suspension?

How should a prescription for 1.5 g of tetracycline lauryl sulfate and 50 g of Carbonex be prepared for a patient using it as a nasal ointment for small sores, given that the doctor could not clarify the meaning of Carbonex; specifically, should a 2% Carbopol gel or a fatty ointment base like unguentum oculare be used, and would a fatty base negatively affect the cilia of the nasal mucosa?