Low-Dose Naltrexone vs Metformin XR

Side-by-side comparison of mechanisms, dosing, interactions, and stacking potential.

Low-Dose NaltrexoneMetformin XR
CategoryPharmaceuticalsPharmaceuticals
Standard Dose
Timing
Cycle Duration
Evidence LevelEmergingStrong
A

Low-Dose Naltrexone

Pharmaceuticals

Mechanism

Transient opioid receptor blockade that may increase endogenous endorphin signaling and modulate immune tone in off-label protocols.

Contraindications

  • Concurrent opioid use
  • Use caution in active liver disease
B

Metformin XR

Pharmaceuticals

Mechanism

AMPK-activating insulin sensitizer that reduces hepatic glucose output and improves glycemic control. Also used in longevity-oriented discussion due metabolic effects.

Contraindications

  • Severe renal impairment
  • Acute illness with lactic acidosis risk

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