Most widely used colors in pharmacy

Most widely used colors are as follows.

· Titanium dioxide (white)

· Brilliant blue (blue)

· Indigo carmine(blue)

· Amaranth (red)

·Tartarazine(yellow)

· Sunset yellow(yellow)

· Carmine (red)

·Caramel (brown)

·Chlorophyll(green)

· Annatto seeds(yellow to orange)

· Carrots (yellow)

· Madder plant(reddish yellow)

· Indigo (blue)

· Saffron (yellow)

Most widely used Flavoring agents

Most widely used Flavoring agents are as follows:

Acacia	Ginger	Sarsaparilla syrup
Anise oil	Glucose	Spearmint oil
Benzaldehyde	Glycerin	Thyme oil
Caraway oil	Glycerrhiza	Tolu balsam
Cardamom (oil, tincture, spirit)	Honey	Vanilla
Cherry syrup	Lavender oil	Vanilla tincture
Cinnamon (oil, water)	Lemon oil	Tolu balsam syrup
Citric acid syrup	Mannitol	Wild cherry syrup
Citric acid	Nutmeg oil
Clove oil	Methyl salicylate
Cocoa	Orange oil
Cocoa syrup	Orange flower water
Coriander oil	Peppermint (oil, spirit, water)
Dextrose	Raspberry
Ethyl acetate	Rose (oil, water)
Ethyl vanillin	Rosemary oil
Fennel oil	Saccharin sodium

List Of Suspending Agents

List Of Suspending Agents

·  Alginates

·  Methylcellulose

·  Hydroxyethylcellulose

·  Carboxymethylcellulose

·  Sodium Carboxymethylcellulose

·  Microcrystalline cellulose

·  Acacia

·  Tragacanth

·  Xanthan gum

·  Bentonite

·  Carbomer

·  Carageenan

·  Powdered cellulose

·  Gelatin

Most suspending agents perform two functions i.e. besides acting as a suspending agent they also imparts viscosity to the solution. Suspending agents form film around particle and decrease interparticle
attraction.

A good suspension should have well developed
thixotropy. At rest the solution is sufficient viscous to prevent sedimentation and thus aggregation or caking of the particles. When agitation is applied the
viscosity is reduced and provide good flow characteristic from the mouth of bottle.

The various components, which are used in suspension formulation

The various components, which are used in suspension formulation, are as follows.

Components	Function
API	Active drug substances
Wetting agents	They are added to disperse solids in continuous liquid phase.
Flocculating agents	They are added to floc the drug particles
Thickeners	They are added to increase the viscosity of suspension.
Buffers and pH adjusting agents	They are added to stabilize the suspension to a desired pH range.
Osmotic agents	They are added to adjust osmotic pressure comparable to biological fluid.
Coloring agents	They are added to impart desired color to suspension and improve elegance.
Preservatives	They are added to prevent microbial growth.
External liquid vehicle	They are added to construct structure of the final suspension.