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Updated: May 30, 2026

Fertility Preservation Through Oocyte Vitrification: Clinical and Laboratory Perspectives
Published on: September 16, 2021
[Tamoxifen combined with coenzyme Q10 for idiopathic oligoasthenospermia]
Kai-Fa Tang1, Yao Xing, Chun-Yun Wu
1Department of Urology, The First Affiliated Hospital, Medical College, Xi'an, Shaanxi 710061, China. doc.tangkf@hotmail.com
Objective:
To investigate the effects of tamoxifen (TMX) combined with coenzyme Q10 (CoQ10) on idiopathic oligoasthenospermia.
Methods:
A total of 183 patients with idiopathic oligoasthenospermia were randomly divided into a TMX + CoQ10 group (n = 63), a TMX group (n = 61) and a CoQ10 group (n = 59). At the end of 3 and 6 months of treatment, semen analyses and hormone tests were performed, and the results were compared with those obtained before the treatment.
Results:
Compared with the pre-treatment results, the levels of follicle-stimulating hormone (FSH), luteinizing hormone (LH) and testosterone (T) and sperm concentration were significantly elevated in the TMX + CoQ10 and TMX groups (P < 0.05), but showed no significant difference in the CoQ10 group (P > 0.05); sperm motility and morphologically normal sperm were increased significantly in the TMX + CoQ10 and CoQ10 groups (P < 0.05), and slightly in the TMX group but with no statistically significant difference (P > 0.05).
Conclusion:
Tamoxifen combined with CoQ10 can significantly improve sperm concentration, motility and morphology in patients with idiopathic oligoasthenospermia.
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