Is the stability of atropine eye drops ensured after freezing, and can they be stored in the freezer when prepared as a magistral formula containing 10 mg atropine sulfate, 170 mg boric acid, 1 mg benzalkonium chloride, and double-distilled water?

What is the prescribed dosage for a dexamethasone syrup administered at 5 mg twice daily?

Is there a specific formula for preparing terbinafine dusting powder, and can terbinafine tablets be used as the source of the active ingredient?

Is it possible to successfully prepare a Phenytoin-Ketamine cream consisting of 10% Phenytoin, 10 ml Ketalar ampules, and Pentravan up to 100 grams, considering this is a relatively expensive combination?

What is the shelf life for a preparation containing 2,400,000 IU nystatin, 1.2 g erythromycin, and 0.1 g prednisolone in AVA cream, given that the physician refuses to split the preparation despite a known reaction between nystatin and erythromycin?

Is there a way to administer glutathione via aerosol, and can this be prepared as a magistraal formulation, as requested by a physician?

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