Research Article

Formulation and In Vitro Evaluation of Bilayer Tablets of Nebivolol Hydrochloride and Nateglinide for the Treatment of Diabetes and Hypertension

Table 8

Characteristic peak of Nebivolol pure drug and optimized formula.

Functional groupsReported value (cm−1)Observed value (cm−1)
Pure drug
Observed value (cm−1) 
Optimized formula

Nitro compounds1550–14751493.301493.05
Alkyl halides1300–11501214.621215.17
Aliphatic amines1250–10201074.871074.47