Introduction: the point of the present survey was to evaluate time and dose-dependent adverse effects of four restorative herbs on male reproductive system.
Methods: the study involved of seventeen distinctive gatherings of ten mice as takes after: group C1 to C4 (Cuminum cyminum), which received 0.1 ml Cuminum cyminum essential oil at dosage of 0.1, 1, 10 and 100 mg/kg/day, respectively. Group R1 to R4 (Rosa damascene), which received 0.1 ml Rosa damascene essential oil at dosage of 0.1, 1, 10 and 100 mg/kg/day, respectively. Group Z1 to Z4 (Zataria multiflora), which received 0.1 ml Zataria multiflora ethanolic extract at dosage of 100, 200, 400 and 800 mg/kg/day, respectively. Group O1 to O4 (Origanum vulgare), which received 0.1 ml Origanum vulgare ethanolic extract at dose of 100, 200, 400 and 800 mg/kg/day, respectively and finally group Normal which got similar amount of normal saline.
Results: the results demonstrated that sperm density, mobility and viability in groups R4, O4, Z2, Z3, Z4, C2, C3 and C4 after 4 weeks were altogether diminished in comparison with normal group.
Discussion: according to the results, mentioned medicinal plants should not be used frequently for prolonged duration