Table 3. Forced Degradation Data of Clindamycin.

Condition	% Degradation sample	Assay (% w/w) in degradation sample	Purity index	Single point threshold	Peak purity
Control sample (unstressed)	1.15	98.8	1.000	0.999	Passed
Acid degradation 1 M; HCl 120 min at @ 80 °C	11.50	86.6	1.000	0.998	Passed
Base degradation 1 M; NaOH 1 min @ 80 °C	16.50	82.5	1.000	0.996	Passed
Peroxide Stress 0.5% H2O2	11.30	85.5	1.0000	0.999	Passed
Thermal Stress @ 80 °C 2 h	13.50	85.6	1.000	0.999	Passed
Photo Stress Fluorescent 1.2 M Lux and UV-200 W h–1 (Sample in ampule) direct exposure	1.29	100.9	1.000	0.999	Passed