What is a good tablet?(Quality requirement) Appropriate hardness Appealing appearance 。Accurate dose Uniformity (weight,amount of active,coating thickness,etc.):especially for small dosage drugs Appropriate disintegration and dissolution Stability of the drug ("the active") Masking of taste,odour Production is economically sound What is a good tablet? ( Quality requirement) • Appropriate hardness • Appealing appearance • Accurate dose • Uniformity (weight, amount of active, coating thickness, etc.): especially for small dosage drugs • Appropriate disintegration and dissolution • Stability of the drug ("the active") • Masking of taste, odour • Production is economically sound