Oxandrolone , as well as any other AAS, causes suppression of the HPT axis. For a long time, and in many circles, it has been believed that oxandrolone did not affect the endogenous production of testosterone, but this is not true. Although the suppression caused by oxandrolone is light and easily reversed, it does exist. Thus, even with the rebound effect on the production of LH and testosterone, it is necessary to do the TPC at the end of the cycle, which may be a lighter TPC than the one usually used in cycles with stronger drugs. Starting the CPT 24 hours after the very useful dose, in the first 2 weeks 100mg / day of Clomiphene + 40mg / day of Tamoxifen. In the next 2 weeks reduce the dosage by half. Some people perform TPC with the Purus Labs + Tribulus 1000 mg Recycle supplement per day for 4 weeks.