Options for replacement therapy include: a new oral form of testosterone undecanoate taken twice daily Testosterone gel 1% or 1.62% (5 to 10 g of gel daily to deliver 5 to 10 mg of testosterone daily) Transdermal axillary solution (60 mg once a day) A buccal mucosal lozenge (30 mg twice a day) Transdermal testosterone patch (4 mg once day) A nasal formulation (one spray of 5.5 mg in each nostril 3 times a day) Subcutaneous testosterone implants (75 mg / pellet) given as 4 to 6 units placed every 3 to 6 months IM testosterone enanthate or cypionate (100 mg every 7 days or 200 mg every 10 to 14 days); available for self-injection Testosterone gel maintains physiologic blood levels more consistently than other treatments, but IM or patch systems are sometimes preferred because of their lower cost.