Citric acid, tartaric acid, succinic acid, phosphoric acid |
Acidic |
Water |
0 |
100 (3.16 kPa) |
Water soluble solid carriers are suitable for melt method |
Sodium acetate, sodium-o-hydroxy benzoate, sodium-p-hydroxy benzoate, sodium citrate, resorcinol, ascorbic acid |
Hydrotropes |
Methanol |
–93.3 |
65 (16.9 kPa) |
Volatile solvent suitable for thermolabile drugs |
Dextrose, sorbitol, mannose, sucrose, maltose, galactose, xylitol, lactose, soluble starch, d-glucose, chitosan, galactomannan, amylodextrin, British gum |
Sugars |
Ethanol |
–117 |
78.5 (5.79 kPa) |
Volatile solvent suitable for thermolabile drugs |
Gelucire 44/14, Poloxamer F-127, deoxycholic acid, Pluronic F68, Myrj 52, sodium lauryl sulfate, Tween 80, Span 80, vitamin E TPGS, docusate sodium, polyoxyethylene stearate |
Surfactants |
Ethanol |
–117 |
78.5 (5.79 kPa) |
Gelucire and TPGS commonly used |
PEG-4000, PEG 6000, polyvinyl pyrrolidone (PVP), β-cyclodextrin, hydroxypropyl-β-cyclodextrin, Eudragit L100 sodium salt, sodium salt of crystalline microcellulose, hydroxy propyl methyl cellulose, methyl cellulose, guar gum, xanthan gum, dextrin |
Polymers |
Isopropyl alcohol |
–127 |
82.4 (5.85 kPa) |
Tackiness observed due to PEG and PVP |
Dicalcium phosphate, silica gel, hydroxy alkyl xanthene, urethane, urea, skimmed milk, pentaerythritol |
Others |
Chloroform |
–63 |
62 (26.1 kPa) |
Volatile solvent suitable for thermolabile drugs |