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Ana4.6

Anastrozole

Limited safety

Evidence

Evidence Score4.6/10

Studies: 8

Meta-analyses: 1

Dosage & timing

Dosage:

Approved breast-cancer dose is 1 mg once daily. Off-label use in men mirrors this (typically 0.5–1 mg/day or 1 mg 2–3×/week to avoid over-suppressing estradiol) under a clinician, with estradiol and bone monitoring. A prescription drug; not an approved men's-health regimen.

Best Time:

Any time

Can take on empty stomach

Form:

Oral tablet (anastrozole)

What you'll notice

📈 Raises testosterone, lowers estradiolpositive

Weeks (peaks ~3 months)

🎗️ Breast-cancer adjuvant (approved)positive

Years

➖ No proven strength / body-comp benefit in mennegative

Up to 1 year

Safety

Limited safety

Contraindications:

Premenopausal women / pregnancy (teratogenic; approved only postmenopausal)
Pre-existing osteoporosis or high fracture risk (estrogen suppression worsens bone)
Severe hepatic impairment

Drug Interactions:

Tamoxifen / estrogen-containing therapies
Bisphosphonates / bone agents

Side Effects:

Bone-density loss / increased fracture riskJoint / muscle aches (arthralgia)Low libido / mood changes (men, from low estradiol)

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