How can I prevent a tar shampoo containing 2% tar in Shampoo simplex up to 100% from becoming too viscous?

What is the best way to prepare an ointment containing 300 mg hexachlorophene, 18 g almond oil, 300 mg prednisolone, 9 g white petrolatum, and 12 g spermaceti, given that the resulting ointment base is currently too brittle and crumbly to be dispensed?

How can the flavor of a carbocisteine syrup be improved and its discoloration or de-coloration be prevented, specifically for a formulation containing 7.5g carbocisteine, 3.75g to 5g sodium bicarbonate, 7.5g alcohol, 75g tolu balsam syrup, and preservative water up to 150 ml, given that replacing the tolu balsam with cinnamon syrup—as used in Muco-Rhinathiol—initially improved the taste but resulted in a recurring sulfur flavor after one week likely due to carbocisteine degradation?

What is the difference between buffered cetomacrogol cream and hydrophilic anionic cream, specifically regarding whether the anionic cream offers advantages such as better absorption over the non-ionic cetomacrogol cream, given that both are included in the TMF and a physician recently prescribed the hydrophilic anionic cream specifically for use with 0.06% betamethasone dipropionate?

What is the purpose of a preparation containing 0.1% diamorphine, 25 g zinc oxide, 25 g talc, 25 g glycerin, and water up to 100 g, prescribed by a palliative care department for a painful wound in the vulvar area?

Capsules were made with the following composition: 220 mg Aminophylline, 12.5 mg Promethazine, and 6 mg Prednisolone; after 3 weeks, the white powder mixture turned a light brown color, so to what can this color change be attributed?

What is the indication for a syrup preparation containing 80 g of urea, 120 g of water, and raspberry syrup up to 300 ml, and what is the function of urea in this specific preparation?