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Ranitidine decreases human sperm motility and vitality and increases the activity of seminal creatine kinase.
Andrologia 2022 August
Ranitidine (brand name: Zantac), an acid reducer, belongs to histamine-2 receptor antagonists. Since 1981, even though several adverse effects of this drug were reported in the body, still, its effects on human sperm parameters have yet to be confirmed. In this work, we attempted to measure sperm motility, sperm vitality and activity of seminal creatine kinase in the ejaculated human semen (n = 31) in the presence of ranitidine at a range of concentrations (0.1, 0.3, 0.6, 0.9 and 1.2 μg/ml) compared with control (without ranitidine). Sperm motility was measured using the Makler counter, whilst sperm vitality was assessed using the Eosin test. Creatine kinase activity was measured using the kinetic spectrophotometric method. Sperm motility (total and progressive) as well as sperm vitality was significantly (p < .05) reduced in the presence of ranitidine in human semen, particularly at the higher tested concentrations (0.6-1.2 μg/ml) compared with the control. On the other hand, creatine kinase activity was significantly increased (p < .05) in the presence of ranitidine at 0.6, 0.9 and 1.2 μg/ml. In conclusion, ranitidine at 0.6-1.2 μg/ml reduced sperm motility and vitality, but increased the activity of creatine kinase in ejaculated human semen.
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