Why are there so many different concentrations of chlorhexidine in the range of preparations?

Do you have a formulation for a 1% xylocaine eye gel?

Why is Aerosil necessary in the preparation of 20 capsules containing 1.38 mg of ketotifen fumarate, given that it was also recommended to first create a trituration with lactose?

Can the formula for a 4% minoxidil hydroalcoholic solution (Minoxidil 2g, Isopropyl alcohol 25g, Propylene glycol 10g, and purified water q.s. ad 50g) be modified to reduce the alcohol content, as the patient is experiencing irritation around the eyes due to the alcoholic nature of the current preparation?

What is the shelf life of a suspension syrup prepared using half aqua conservans and half 70% sorbitol solution?

What is the composition of Scholle's oral solution, used for metabolic acidosis?

How can a cream containing 5g of coal tar and Unguentum Emulsificans cum Aqua up to 100g be prepared, given that coal tar is not miscible with this water-rich base and cannot be heated, and considering that prior attempts to mix it with paraffin oil or castor oil were unsatisfactory; would using a Beeler basis or Cetomacrogol cream be more effective, or is there a solution using the original emulsifying ointment and water?