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Management of Side Effects of AR-Targeted
Therapies – Hypothyroidism (Apalutamide)
• Common symptoms:
• Fatigue/sluggishness, cold intolerance,
constipation, hair loss, weight gain
• Monitor TSH at baseline and as clinically
indicated.
• If abnormal:
• Test for total T3, free T4, total T4
• Refer to PCP for thyroid hormone
supplementation
PCP = Primary care physician
TSH = Thyroid-stimulating hormone ERLEADA Product Monograph] 2021