Is it possible to replace 500 mg of calcium phosphate with sodium monohydrogen phosphate dihydrate to achieve the same amount of phosphate for a patient with a phosphorus deficiency, given that calcium phosphate is only available as a technical raw material and Calisvit is currently unavailable, and if so, what quantity of sodium monohydrogen phosphate dihydrate is required?

Why is anhydrous citric acid added to methadone syrup (formula: 100 mg methadone HCl, 100 mg anhydrous citric acid, 100 mg banana aroma, 10 g glycerol, 40 g sugar syrup, and preserved water up to 112 g or 100 ml), and is a methadone solution in preserved water equally stable?

What is the correct formula for 5% bicarbonate ear drops, given that only home-made recipes have been found?

How should I prepare the following shampoo based on cade oil: Hydrolan 20 g, lactic acid 20 g, sodium lauryl sulfate 100 g, chloramphenicol 10 g, cade oil 10 g, salicylic acid 10 g, and water up to 500 ml?

What is the composition of the INP base, which is used in the Netherlands to prepare analgesic ointments such as Gabapentin?

Can the Carbopol gel formula from the TMF be used for a vaginal gel containing 30 mg of triamcinolone acetonide in 30 grams of methylcellulose gel, given the concern that the carbomer gel preparation on page 277 of the TMF contains too much alcohol and may cause stinging?

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