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Review
. 2009:4:397-412.
doi: 10.2147/cia.s4466. Epub 2009 Nov 18.

Safety and efficacy of testosterone gel in the treatment of male hypogonadism

Kishore M Lakshman  1 , Shehzad Basaria
Affiliations
Review

Safety and efficacy of testosterone gel in the treatment of male hypogonadism

Kishore M Lakshman et al. Clin Interv Aging. 2009.

Abstract

Transdermal testosterone gels were first introduced in the US in 2000. Since then, they have emerged as a favorable mode of testosterone substitution. Serum testosterone levels reach a steady-state in the first 24 hours of application and remain in the normal range for the duration of the application. This pharmacokinetic profile is comparable to that of testosterone patch but superior to injectable testosterone esters that are associated with peaks and troughs with each dose. Testosterone gels are as efficacious as patches and injectable forms in their effects on sexual function and mood. Anticipated increases in prostate-specific antigen with testosterone therapy are not significantly different with testosterone gels, and the risk of polycythemia is lower than injectable modalities. Application site reactions, a major drawback of testosterone patches, occur less frequently with testosterone gels. However, inter-personal transfer is a concern if appropriate precautions are not taken. Superior tolerability and dose flexibility make testosterone gel highly desirable over other modalities of testosterone replacement. Androgel and Testim, the two currently available testosterone gel products in the US, have certain brand-specific properties that clinicians may consider prior to prescribing.

Keywords: Androgel; Testim; hypogonadism; testosterone gel.

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Figures

Figure 1
Figure 1
Serum T concentrations (mean ± SEM) over 24 h after first application of 100 mg T gel. Reproduced with permission from Wang C, et al. J Clin Endocrinol Metab. 2000;85:964–969. © The Endocrine Society.
Figure 2
Figure 2
Serum T concentrations (mean 6SE) before (day 0) and after transdermal T applications on days 1, 30, 90, and 180. Reproduced with permission from Swerdloff RS, et al. J Clin Endocrinol Metab. 2000;85:4500–4510. © The Endocrine Society.
Figure 3
Figure 3
Changes in body composition A) and muscle strength B) during treatment with Androgel. Reproduced with permission from wang C, et al. J Clin Endocrinol Metab. 2004;89:2085–2098. © The Endocrine Society.
Figure 4
Figure 4
Changes in hip and spine bone mineral density (BMD) in hypogonadal men treated with Androgel. Reproduced with permission from wang C, et al. J Clin Endocrinol Metab. 2004;89:2085–2098. © The Endocrine Society.
Figure 5
Figure 5
Total serum testosterone levels pre- and post-gel substitution. Reproduced with permission from Grober ED, et al. Efficacy of changing testosterone gel preparations (Androgel or Testim) among suboptimally responsive hypogonadal men. Int J Impot Res. 2008;20:213–217. © Nature Publishing Group.
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