Page 34 - Pharmaceutics III_ 02-06-01304_Fall 2025_ Pharm D_Electronic book
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• Polyvinyl acetate
• Acrylic polymers (Eudragit RL, RS)
Applications:
• Once-daily tablets
• Minimize side effects
• Maintain plasma concentration
Comparison between Sugar and Film Coating:
Property Sugar Coating Film Coating
Process time Long Short
Weight gain 30–50% 2–3%
Operator skill High Low
Equipment Simple pan Automated spray
Appearance Glossy Dull to semi-gloss
Resistance to abrasion Low High
Classification of Tablets According to Route of Administration:
1. Oral tablets
o Conventional (swallowing)
o Chewable
o Buccal & sublingual
o Effervescent
o Orally disintegrating tablets
2. Tablets for oral cavity
o Lozenges (troches): dissolve slowly in mouth.
o Dental cones: inserted in tooth socket after extraction.
3. Tablets for solution
o Effervescent tablets: rapid CO₂ release.
o Soluble tablets: dissolve before administration.
4. Other routes
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