Regarding the preparation of dexamphetamine sulfate capsules, the doctor requests the addition of an excipient to prevent the patient from opening the capsules and snorting the contents; what non-harmful substance could be added to serve as a deterrent?

Given the original formula for cetomacrogol hand cream—consisting of 16% cetyl alcohol, 20% olive oil, 20% glycerin, 3% C1000, and aqua conservans ad 100%—which was later adjusted to use peanut oil instead of olive oil due to the yellow-green color, what is the impact or difference if this preparation is made with peanut oil, olive oil, or almond oil?

What is the best way to prepare a non-greasy gel or lotion containing 4% erythromycin and 2% metronidazole, and is it advisable to triturate the metronidazole into erythromycin TMF gel?

What is the quantitative composition of the sodium bicarbonate mouthwash, specifically is it 0.7% or 1.4%, as requested by Pharmacie LAINE in Leernes (pharmacie.laine@outlook.com, APB 523902)?

What are the potential problems and the correct preparation method for a 200g lidocaine 10% anesthetic cream containing 20g lidocaine, 28g cetomacrogol emulsifying wax, 23.4g liquid paraffin, 42g white petrolatum, 18.6g propylene glycol, and 68g purified water?

What is the indication for acidic ear drops containing acetic acid (0.500g), borax (0.500g), triamcinolone acetonide (0.250g), sodium salicylate (0.500g), sodium propionate (0.500g), propylene glycol, 96% ethanol, and water, and what is the specific function of borax in this preparation, given that it lacks the antibiotics or hydrocortisone typically found in treatments for otitis externa or eczema?

When a cloudiness occurs during the compounding of a nasal spray by mixing Nasonex and Atrovent, and Magis-Pharma suggests resolving this by using methylcellulose, is it the intention to replicate the composition of Nasonex nasal spray for 10 mL by replacing sodium carboxymethylcellulose (NaCMC) with methylcellulose, and should Atrovent 0.25 mg/2 mL or 0.5 mg/2 mL be used?