What it is
Regulatory status: medication; availability and prescription status vary by dose and jurisdiction
Evidence basis: Human clinical evidence
Famotidine blocks histamine H2 receptors on gastric parietal cells and reduces stomach-acid secretion. That established mechanism does not validate off-label longevity or glucose claims.
What it is, why people use it, the evidence, and what to know before trying it.
Regulatory status: medication; availability and prescription status vary by dose and jurisdiction
Evidence basis: Human clinical evidence
Contraindications, interactions and clinical cautions from reviewed sources.
Dose adjustment may be required in renal impairment. Headache, dizziness, constipation, or diarrhea can occur; medicine interactions and prolonged unsupervised acid suppression deserve review.
This review does not automatically apply to:
Public protocols that include Famotidine. Open one to see the full context and source.
Over-the-counter H2 blocker, not a prescription. This records Ferriss's experimental rationale, not evidence of effectiveness or a recommendation.
Brand variants reported in public protocols. Private entries are excluded, and inclusion is not an endorsement.
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