Tablet in Pharmaceuticals

Tablet : Tablet is solid dosage forms containing medicinal substances with or without suitable diluents.

Type of tablets :

a.      Oral tablets for ingestion

-        Compressed tablets

-        Multiple compressed tablets

Layered tablets

Compression coated tablets

-        Repeat action tablets

-        Delayed action tablets and enteric coated tablets

-       chocolate  coated and Sugar coated tablets

-        Film coated tablets

-        Chewable tablets

b.      Tablets used in the oral cavity

-        Buccal tablets

-        Sublingual tablets

-        Troches and lozenges

-        Dental cones

c.      Tablets administered by other routes

-        Implantation tablets

-        Vaginal tablets

d.      Tablets used to prepare solution

-        Effervescent tablets

-        Dispensing tablets (DT)

-        Hypodermic tablets (HT)

-        Tablets triturates (TT)

Multiple compressed tablets – Multiple compressed tablets are prepared by subjecting the fill materials to more than a single compression.

Route – Oral cavity, sub-lingual, Buccal, dental cones.

Effervescent tablets – Oral solid dosage form that is added to water before ingesting. The tablets contain sodium bicarbonate and an organic acids (citric acid / tartaric acid), evolved Carbon-dioxide gas.

Dispersible tablet – Uncoated tablet that produce a uniform dispersion, which not evolved any gas

About Tablet Manufacturing – 
-       Tablets Hardness should be generally 4 kg 
-       Weight may be variation – ±5% 
-       Disintegration – The specified time generally falls between 15 to 20 minutes.
-     Compressed tablet – In addition to the medicinal agent(s) compressed tablet contain a number of pharmaceutical excipients including filler or diluent. Binders, disintegration, ant adherents, lubricants, glidants, coloring and flavoring agents.

Double impression – This involves only punches that have a monogram or other engraving on them. Imprinting is mainly dome by lower punch. In some machines the lower punch is froe to drop and travel uncontrolled in a short distance.

*During this force movement, the punch rotates. At now the punch might create a brand new, though lighter impression on bottom of the pill, leading to double imprint.