Table 1. Average body weights of experimental groups before and after the study.

Groups	Body weights before study	Body weights after study	P
Control	305.62 ± 7.98	306.75 ± 8.44	NS
APAP	307.50 ± 6.54	293.50 ± 7.03	0.012
FA	306.25 ± 16.76	307.50 ± 17.26	NS
APAP+FA	300.00 ± 8.81	289.75 ± 9.70	0.012
APAP+NAC	291.25 ± 6.66	285.25 ± 6.88	NS
P	NS	NS

APAP: acetaminophen, FA: folic acid, APAP+FA: acetaminophen+ folic acid, APAP+NAC: acetaminophen+ N-acetylcysteine. NS: not significant (t-test).