Photostability and toxicity of finasteride, diclofenac and naproxen under simulating sunlight exposure: evaluation of the toxicity trend and of the packaging photoprotection

Table 3 Integral toxicity index of active pure principles before and after exposure to 90 h of simulated sunlight

Active principle	Photodegradation time (h)	ΔI₀	ΔI	I_t = ΔI/ΔI₀
Finasteride	0	3.26 ± 0.02	1.65 ± 0.02	0.51
Finasteride	90	3.46 ± 0.04	1.35 ± 0.03	0.39
Diclofenac	0	3.45 ± 0.02	2.66 ± 0.01	0.77
Diclofenac	90	4.77 ± 0.02	2.25 ± 0.02	0.47
Naproxen	0	3.06 ± 0.01	2.35 ± 0.02	0.77
	90	4.06 ± 0.03	0.55 ± 0.01	0.14

ISSN: 2661-801X