Comparative Study of Chemical Stability of Two H<sub>1</sub> Antihistaminic Drugs, Terfenadine and Its <i>In Vivo</i> Metabolite Fexofenadine, Using LC-UV Methods

<div>First-order plots of (a) terfenadine (TER) degradation under UV/VIS light at different pH and (b) fexofenadine (FEX) degradation under UV/VIS light at different pH.</div>

Journal of Analytical Methods in Chemistry

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Figure 5

Figure 5: Comparative Study of Chemical Stability of Two H<sub>1</sub> Antihistaminic Drugs, Terfenadine and Its <i>In Vivo</i> Metabolite Fexofenadine, Using LC-UV Methods 

Figure 5 | Comparative Study of Chemical Stability of Two H1 Antihistaminic Drugs, Terfenadine and Its In Vivo Metabolite Fexofenadine, Using LC-UV Methods 