Anastrozole
Anastrozole lowers the amount of testosterone that converts into estradiol, keeping the two in balance on testosterone therapy and easing the breast tenderness and fluid retention that high estradiol can cause. It is available as a tablet or compounded capsule and is included with IAM's men's TRT program only when your labs call for it. A licensed provider reviews symptoms, medications and labs before prescribing.
Also available in Testosterone for menPharmacy shipping: $20 added once per medication order.
Included with the men's TRT program when clinically indicated. Any other availability is confirmed after provider review.
What anastrozole can help with
Keep estrogen in balance on testosterone therapy.
Anastrozole lowers the amount of testosterone that converts into estradiol, which helps keep the two hormones in balance during testosterone therapy. IAM includes it in men's TRT only when your labs and symptoms call for it.
Raise testosterone, lower estradiol
In a one-year randomized study of older men with low testosterone, anastrozole raised testosterone and lowered estradiol. On testosterone therapy the same mechanism addresses estradiol that climbs with the dose.
Address the effects of excess estrogen
When estradiol runs high on testosterone therapy, men can notice breast tenderness or fluid retention. Anastrozole brings the balance back, and labs confirm the change.
Prescribed only when your labs call for it
Estradiol has useful roles in men, including bone, so IAM prescribes anastrozole from your results rather than routinely, and follow-up labs guide whether it stays in the plan.
How it works
Aromatase is the enzyme that converts testosterone into estradiol. Anastrozole blocks it, so less of your testosterone is turned into estrogen and more remains as testosterone.
Research and product information
Anastrozole is approved for specified breast-cancer uses; its use in men's hormone care is off-label, and IAM's compounded capsule is distinct from the approved tablet. Lowering estradiol is not a goal in itself, which is why it is prescribed from labs.
- Arimidex: anastrozole prescribing information
- Anastrozole: randomized study of hormones and bone density in older men
Sources checked .
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What patients say about IAM.
The TRT program completely changed my life.
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HRT has given me my life back.
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Your path to Anastrozole
Complete the assessment
Share your symptoms, medications, hormone-treatment history, and recent labs.
Provider review
A licensed provider determines whether Anastrozole is clinically indicated and sets the prescription.
Ongoing follow-up
Your provider reviews your response and any clinically indicated follow-up labs.
About this treatment
What it is
Anastrozole is a prescription aromatase inhibitor that reduces the conversion of testosterone into estradiol. IAM dispenses tablet and compounded capsule forms only when a provider determines one is clinically appropriate.
Who it's for
Patients whose provider decides an aromatase inhibitor belongs in their care after reviewing symptoms, current medications, medical history, and relevant lab results.
Forms we dispense
Tablet 0.25mg or 1mg · Compounded capsule 0.5mg
A licensed provider reviews your history and requests labs when clinically appropriate before prescribing.
Prescriptions are coordinated with our licensed US pharmacy partner, with dosing supplies included when needed.
We do not sell pharmaceuticals online. Every prescription comes after a full provider review.
