What is the most suitable method for preparing sulpiride in the form of a syrup?

How should I prepare the following W/O cream containing 2 g erythromycin, 2.4 million units of nystatin powder, 2 g urea, 2 g lactic acid, 2 g salicylic acid, 6 g Arlacel C 83, 54 g vaseline, and water up to 100 g?

What alternative can be used for Adeps solidus, Novata B, given that many suppository masses are currently unavailable, for the preparation of suppositories containing caffeine, paracetamol, and codeine phosphate, noting that the melting point of Novata B is 35.5 °C?

What is the best procedure to stabilize a cold cream preparation containing 0.1% betamethasone, 10% liquor carbonis detergens (LCD), and 2% urea, given that the cream consistently breaks when LCD exceeds 5% even after adding 400mg/100g of hypromellose?

Is Carbopol 980 suitable for internal use in a budesonide suspension for the esophagus, given that the hospital pharmacist suggested it can be prepared with carbomer gel TMF like rectal suspensions, despite the packaging only specifying external use?

What is the best way to prepare progesterone 400 mg ovules considering that a hydrophilic base of 3 parts PEG 400 and 2 parts PEG 6000 was previously used, but APB-NF VI PEG 6000 is currently unavailable?

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