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Future Journal of Pharmaceutical Sciences

Table 1 Levels of variables for optimization

From: Application of response surface methodology (RSM) in statistical optimization and pharmaceutical characterization of a patient compliance effervescent tablet formulation of an antiepileptic drug levetiracetam

Code

Variables

Level of variables

āˆ’ 1

0

+ 1

āˆ’ Ī±

+ Ī±

X1

Citric acid

320

640

960

187.45

1092.55

X2

Effersoda

320

640

960

187.45

1092.55

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