I inject 1.25 iu of 200 mg testosterone cypionate per week plus 1000 mg of hcg two days before the T. My last two tests of estradiol have been very low. They were not the sensitive tests, so I decided to get one from discounted labs. I got the results today and estradiol is at 4.8. My doctor has been trying to bring my estradiol up with high dosage HCG, but it isn't working. I have never used an AI. It is hurting my libido and morning erections. Does anyone know of a medication or something that would increase estradiol? Are there any success stories bringing estradiol up?