LAQ Ws W2

Question 1

You are a formulation scientist and a pharmacist returns three medications formulated as dispersions. Number one contains a fluffy substance taking up about 3/4 of the bottle and floating in a clear colourless liquid. When shaking the whole bottle becomes cloudy and returns to its original state.

Answer 1

Is sedimented, flocculated and safe

Question 2

You are a formulation scientist and a pharmacist returns three medications formulated as dispersions. Number two has a thin layer of solid material at the bottom of the bottle and taking up less than 10% of the bottle volume in a clear colourless liquid. When shaken some of the solid forms clouds in the liquid but remains stuck to the bottom of the bottle

Answer 2

Is aggregated, deflocculated and unsafe

Question 3

You are a formulation scientist and a pharmacist returns three medications formulated as dispersions. Number three contains a thick viscous liquid or uniform appearance with no visible particles or precipitates. Inside the cup of the bottle is a fairy blue/white circle about 5 mm in diameter

Answer 3

The formulation is fine and well dispersed but the fairy circle shows mould which means the bottle may be open and not stored correctly = unsafe