Physical Interaction

4. Powders that absorb so much moisture they dissolve into liquid.
5. Plasticizer that can leach from PVC containers into drug solutions.
6. A drug example that effloresces, losing water of crystallization.
9. The term for a drug changing its crystal arrangement without chemical change.
12. A factor causing precipitation when two solvents with different solubility properties mix.
14. Drugs like diazepam and nitroglycerin often undergo this surface phenomenon in PVC bags.
15. A strategy to prevent efflorescence: use this type of container.

1. The phenomenon where cocoa butter overheats and solidifies incorrectly.
2. General term for sticking to a surface or penetrating into a material.
3. A polymer gum that coagulates in alcohol, often used as a suspending agent.
7. Cooling a solution often causes this physical change due to reduced solubility.
8. A moisture-loving powder that absorbs water but does not dissolve completely.
10. Process where a dissolved drug turns into solid particles in solution.
11. Powder that loses water of crystallization when exposed to air.
13. Cocoa butter exhibits this phenomenon, leading to different melting points.