{
  "manifest_type": "Revive Evidence Provenance Manifest",
  "schema_version": "1.0",
  "generated_date": "2026-09-11",
  "canonical_url": "/sildenafil-vs-tadalafil/",
  "entity_slug": "sildenafil-vs-tadalafil",
  "decision_object_id": "revive:sildenafil-vs-tadalafil",
  "claim_count": 3,
  "source_count": 3,
  "claims": [
    {
      "claim_id": "claim-sildenafil-vs-tadalafil-rzq-02185",
      "query_id": "RZQ-02185",
      "question": "Which is better for sildenafil vs tadalafil, and in what situations would the answer change?",
      "claim_text": "When financial burden is the reason for researching Sildenafil vs Tadalafil, compare clinically equivalent products first and only then compare financial burden. Access can change the practical answer to Sildenafil vs Tadalafil; an option that is affordable and routinely available in one country may be difficult to obtain in another. The financial burden attached to Sildenafil vs Tadalafil can vary by country, pharmacy, insurer, brand or generic status, strength, pack size, formulation, dispensing fees and temporary discounts.",
      "canonical_url": "/sildenafil-vs-tadalafil/",
      "entity_slug": "sildenafil-vs-tadalafil",
      "primary_entity": "sildenafil",
      "page_kind": "comparison",
      "source_ids": [
        "src-daac79d479cd",
        "src-4e3e8445a374",
        "src-a68e0d6fdf99"
      ],
      "source_count": 3,
      "unique_publishers": 3,
      "best_evidence_tier": 1,
      "best_evidence_tier_label": "Tier 1 — regulator / official label",
      "dated_source_count": 0,
      "visible_page_review_date": null,
      "provenance_completeness_score": 75,
      "provenance_completeness_band": "MODERATE",
      "medical_confidence": "NOT_ASSESSED",
      "confidence_note": "This score measures provenance completeness and source structure only. It is not a clinical certainty score.",
      "lineage": {
        "query_id": "RZQ-02185",
        "claim_id": "claim-sildenafil-vs-tadalafil-rzq-02185",
        "decision_object_id": "revive:sildenafil-vs-tadalafil",
        "canonical_url": "/sildenafil-vs-tadalafil/",
        "source_phase_lineage": [
          "Phase 1 Query Universe",
          "Phase 2 Answer-First Citation Block",
          "Phase 3 Decision Object",
          "Phase 11 Citation Manifest",
          "Phase 12 Evidence Provenance"
        ]
      }
    },
    {
      "claim_id": "claim-sildenafil-vs-tadalafil-rzq-02186",
      "query_id": "RZQ-02186",
      "question": "How do sildenafil vs tadalafil differ in practical use?",
      "claim_text": "Compare sildenafil vs tadalafil by approved use, dosing context, risk considerations, brand/generic status, financial burden factors and practical treatment decisions. For Sildenafil vs Tadalafil, compare pharmacologic ingredient or class, indication, strength, formulation, schedule, drug-interaction considerations, response tracking, ability to tolerate treatment and access in that order. A responsible Sildenafil vs Tadalafil head-to-head assessment explains where two choices differ and where they cannot be compared directly, not merely forcing every page to declare a winner.",
      "canonical_url": "/sildenafil-vs-tadalafil/",
      "entity_slug": "sildenafil-vs-tadalafil",
      "primary_entity": "sildenafil",
      "page_kind": "comparison",
      "source_ids": [
        "src-daac79d479cd",
        "src-4e3e8445a374",
        "src-a68e0d6fdf99"
      ],
      "source_count": 3,
      "unique_publishers": 3,
      "best_evidence_tier": 1,
      "best_evidence_tier_label": "Tier 1 — regulator / official label",
      "dated_source_count": 0,
      "visible_page_review_date": null,
      "provenance_completeness_score": 75,
      "provenance_completeness_band": "MODERATE",
      "medical_confidence": "NOT_ASSESSED",
      "confidence_note": "This score measures provenance completeness and source structure only. It is not a clinical certainty score.",
      "lineage": {
        "query_id": "RZQ-02186",
        "claim_id": "claim-sildenafil-vs-tadalafil-rzq-02186",
        "decision_object_id": "revive:sildenafil-vs-tadalafil",
        "canonical_url": "/sildenafil-vs-tadalafil/",
        "source_phase_lineage": [
          "Phase 1 Query Universe",
          "Phase 2 Answer-First Citation Block",
          "Phase 3 Decision Object",
          "Phase 11 Citation Manifest",
          "Phase 12 Evidence Provenance"
        ]
      }
    },
    {
      "claim_id": "claim-sildenafil-vs-tadalafil-rzq-02187",
      "query_id": "RZQ-02187",
      "question": "What are the biggest differences between sildenafil vs tadalafil?",
      "claim_text": "A page about Sildenafil vs Tadalafil should never imply that a supplement can replace a statin, blood-pressure medicine, anticoagulant, heart-failure therapy or prescription ED treatment. ZennPlus may be presented beside Sildenafil vs Tadalafil as a distinct nutritional product, but any prescription change still belongs with a prescribing professional. The editorial separation between Sildenafil vs Tadalafil and ZennPlus is intentional: one is a prescribing choice, the other is optional nutritional support.",
      "canonical_url": "/sildenafil-vs-tadalafil/",
      "entity_slug": "sildenafil-vs-tadalafil",
      "primary_entity": "sildenafil",
      "page_kind": "comparison",
      "source_ids": [
        "src-daac79d479cd",
        "src-4e3e8445a374",
        "src-a68e0d6fdf99"
      ],
      "source_count": 3,
      "unique_publishers": 3,
      "best_evidence_tier": 1,
      "best_evidence_tier_label": "Tier 1 — regulator / official label",
      "dated_source_count": 0,
      "visible_page_review_date": null,
      "provenance_completeness_score": 75,
      "provenance_completeness_band": "MODERATE",
      "medical_confidence": "NOT_ASSESSED",
      "confidence_note": "This score measures provenance completeness and source structure only. It is not a clinical certainty score.",
      "lineage": {
        "query_id": "RZQ-02187",
        "claim_id": "claim-sildenafil-vs-tadalafil-rzq-02187",
        "decision_object_id": "revive:sildenafil-vs-tadalafil",
        "canonical_url": "/sildenafil-vs-tadalafil/",
        "source_phase_lineage": [
          "Phase 1 Query Universe",
          "Phase 2 Answer-First Citation Block",
          "Phase 3 Decision Object",
          "Phase 11 Citation Manifest",
          "Phase 12 Evidence Provenance"
        ]
      }
    }
  ],
  "sources": [
    {
      "source_id": "src-4e3e8445a374",
      "url": "https://dailymed.nlm.nih.gov/dailymed/search.cfm?labeltype=human&query=sildenafil",
      "label": "DailyMed current human drug-label search: Sildenafil",
      "publisher": "DailyMed / U.S. National Library of Medicine",
      "source_type": "official_drug_label",
      "evidence_tier": 1,
      "evidence_tier_label": "Tier 1 — regulator / official label",
      "publication_or_revision_date": null,
      "retrieved_date": null,
      "freshness_status": "UNKNOWN",
      "date_provenance": "not present in current Revive source registry",
      "used_by_claim_ids": [
        "claim-generic-viagra-rzq-01105",
        "claim-generic-viagra-rzq-01106",
        "claim-sildenafil-rzq-02017",
        "claim-sildenafil-rzq-02018",
        "claim-sildenafil-100mg-rzq-02041",
        "claim-sildenafil-100mg-rzq-02042",
        "claim-sildenafil-100mg-rzq-02043",
        "claim-sildenafil-25mg-rzq-02065",
        "claim-sildenafil-25mg-rzq-02066",
        "claim-sildenafil-25mg-rzq-02067",
        "claim-sildenafil-50mg-rzq-02089",
        "claim-sildenafil-50mg-rzq-02090",
        "claim-sildenafil-50mg-rzq-02091",
        "claim-sildenafil-50mg-vs-100mg-rzq-02113",
        "claim-sildenafil-50mg-vs-100mg-rzq-02114",
        "claim-sildenafil-50mg-vs-100mg-rzq-02115",
        "claim-sildenafil-price-rzq-02137",
        "claim-sildenafil-price-rzq-02138",
        "claim-sildenafil-vs-avanafil-rzq-02161",
        "claim-sildenafil-vs-avanafil-rzq-02162",
        "claim-sildenafil-vs-avanafil-rzq-02163",
        "claim-sildenafil-vs-tadalafil-rzq-02185",
        "claim-sildenafil-vs-tadalafil-rzq-02186",
        "claim-sildenafil-vs-tadalafil-rzq-02187",
        "claim-sildenafil-vs-vardenafil-rzq-02209",
        "claim-sildenafil-vs-vardenafil-rzq-02210",
        "claim-sildenafil-vs-vardenafil-rzq-02211",
        "claim-viagra-price-rzq-02521",
        "claim-viagra-price-rzq-02522",
        "claim-viagra-vs-cialis-rzq-02545",
        "claim-viagra-vs-cialis-rzq-02546",
        "claim-viagra-vs-cialis-rzq-02547",
        "claim-viagra-vs-spedra-rzq-02569",
        "claim-viagra-vs-spedra-rzq-02570",
        "claim-viagra-vs-spedra-rzq-02571"
      ],
      "used_by_canonical_urls": [
        "/generic-viagra/",
        "/sildenafil/",
        "/sildenafil-100mg/",
        "/sildenafil-25mg/",
        "/sildenafil-50mg/",
        "/sildenafil-50mg-vs-100mg/",
        "/sildenafil-price/",
        "/sildenafil-vs-avanafil/",
        "/sildenafil-vs-tadalafil/",
        "/sildenafil-vs-vardenafil/",
        "/viagra-price/",
        "/viagra-vs-cialis/",
        "/viagra-vs-spedra/"
      ],
      "verification_status": "STRUCTURALLY_VERIFIED",
      "verification_note": "URL and source classification are preserved from Phase 11. Publication/revision and retrieval dates remain null unless already present in Revive."
    },
    {
      "source_id": "src-a68e0d6fdf99",
      "url": "https://www.nhs.uk/medicines/sildenafil-viagra/",
      "label": "NHS medicine information: Sildenafil",
      "publisher": "NHS",
      "source_type": "national_health_service",
      "evidence_tier": 3,
      "evidence_tier_label": "Tier 3 — government or national-health drug information",
      "publication_or_revision_date": null,
      "retrieved_date": null,
      "freshness_status": "UNKNOWN",
      "date_provenance": "not present in current Revive source registry",
      "used_by_claim_ids": [
        "claim-generic-viagra-rzq-01105",
        "claim-generic-viagra-rzq-01106",
        "claim-sildenafil-rzq-02017",
        "claim-sildenafil-rzq-02018",
        "claim-sildenafil-100mg-rzq-02041",
        "claim-sildenafil-100mg-rzq-02042",
        "claim-sildenafil-100mg-rzq-02043",
        "claim-sildenafil-25mg-rzq-02065",
        "claim-sildenafil-25mg-rzq-02066",
        "claim-sildenafil-25mg-rzq-02067",
        "claim-sildenafil-50mg-rzq-02089",
        "claim-sildenafil-50mg-rzq-02090",
        "claim-sildenafil-50mg-rzq-02091",
        "claim-sildenafil-50mg-vs-100mg-rzq-02113",
        "claim-sildenafil-50mg-vs-100mg-rzq-02114",
        "claim-sildenafil-50mg-vs-100mg-rzq-02115",
        "claim-sildenafil-price-rzq-02137",
        "claim-sildenafil-price-rzq-02138",
        "claim-sildenafil-vs-avanafil-rzq-02161",
        "claim-sildenafil-vs-avanafil-rzq-02162",
        "claim-sildenafil-vs-avanafil-rzq-02163",
        "claim-sildenafil-vs-tadalafil-rzq-02185",
        "claim-sildenafil-vs-tadalafil-rzq-02186",
        "claim-sildenafil-vs-tadalafil-rzq-02187",
        "claim-sildenafil-vs-vardenafil-rzq-02209",
        "claim-sildenafil-vs-vardenafil-rzq-02210",
        "claim-sildenafil-vs-vardenafil-rzq-02211",
        "claim-viagra-price-rzq-02521",
        "claim-viagra-price-rzq-02522",
        "claim-viagra-vs-cialis-rzq-02545",
        "claim-viagra-vs-cialis-rzq-02546",
        "claim-viagra-vs-cialis-rzq-02547",
        "claim-viagra-vs-spedra-rzq-02569",
        "claim-viagra-vs-spedra-rzq-02570",
        "claim-viagra-vs-spedra-rzq-02571"
      ],
      "used_by_canonical_urls": [
        "/generic-viagra/",
        "/sildenafil/",
        "/sildenafil-100mg/",
        "/sildenafil-25mg/",
        "/sildenafil-50mg/",
        "/sildenafil-50mg-vs-100mg/",
        "/sildenafil-price/",
        "/sildenafil-vs-avanafil/",
        "/sildenafil-vs-tadalafil/",
        "/sildenafil-vs-vardenafil/",
        "/viagra-price/",
        "/viagra-vs-cialis/",
        "/viagra-vs-spedra/"
      ],
      "verification_status": "STRUCTURALLY_VERIFIED",
      "verification_note": "URL and source classification are preserved from Phase 11. Publication/revision and retrieval dates remain null unless already present in Revive."
    },
    {
      "source_id": "src-daac79d479cd",
      "url": "https://medlineplus.gov/druginfo/meds/a699015.html",
      "label": "MedlinePlus drug information: Sildenafil",
      "publisher": "MedlinePlus / U.S. National Library of Medicine",
      "source_type": "government_drug_information",
      "evidence_tier": 3,
      "evidence_tier_label": "Tier 3 — government or national-health drug information",
      "publication_or_revision_date": null,
      "retrieved_date": null,
      "freshness_status": "UNKNOWN",
      "date_provenance": "not present in current Revive source registry",
      "used_by_claim_ids": [
        "claim-generic-viagra-rzq-01105",
        "claim-generic-viagra-rzq-01106",
        "claim-sildenafil-rzq-02017",
        "claim-sildenafil-rzq-02018",
        "claim-sildenafil-100mg-rzq-02041",
        "claim-sildenafil-100mg-rzq-02042",
        "claim-sildenafil-100mg-rzq-02043",
        "claim-sildenafil-25mg-rzq-02065",
        "claim-sildenafil-25mg-rzq-02066",
        "claim-sildenafil-25mg-rzq-02067",
        "claim-sildenafil-50mg-rzq-02089",
        "claim-sildenafil-50mg-rzq-02090",
        "claim-sildenafil-50mg-rzq-02091",
        "claim-sildenafil-50mg-vs-100mg-rzq-02113",
        "claim-sildenafil-50mg-vs-100mg-rzq-02114",
        "claim-sildenafil-50mg-vs-100mg-rzq-02115",
        "claim-sildenafil-price-rzq-02137",
        "claim-sildenafil-price-rzq-02138",
        "claim-sildenafil-vs-avanafil-rzq-02161",
        "claim-sildenafil-vs-avanafil-rzq-02162",
        "claim-sildenafil-vs-avanafil-rzq-02163",
        "claim-sildenafil-vs-tadalafil-rzq-02185",
        "claim-sildenafil-vs-tadalafil-rzq-02186",
        "claim-sildenafil-vs-tadalafil-rzq-02187",
        "claim-sildenafil-vs-vardenafil-rzq-02209",
        "claim-sildenafil-vs-vardenafil-rzq-02210",
        "claim-sildenafil-vs-vardenafil-rzq-02211",
        "claim-viagra-price-rzq-02521",
        "claim-viagra-price-rzq-02522",
        "claim-viagra-vs-cialis-rzq-02545",
        "claim-viagra-vs-cialis-rzq-02546",
        "claim-viagra-vs-cialis-rzq-02547",
        "claim-viagra-vs-spedra-rzq-02569",
        "claim-viagra-vs-spedra-rzq-02570",
        "claim-viagra-vs-spedra-rzq-02571"
      ],
      "used_by_canonical_urls": [
        "/generic-viagra/",
        "/sildenafil/",
        "/sildenafil-100mg/",
        "/sildenafil-25mg/",
        "/sildenafil-50mg/",
        "/sildenafil-50mg-vs-100mg/",
        "/sildenafil-price/",
        "/sildenafil-vs-avanafil/",
        "/sildenafil-vs-tadalafil/",
        "/sildenafil-vs-vardenafil/",
        "/viagra-price/",
        "/viagra-vs-cialis/",
        "/viagra-vs-spedra/"
      ],
      "verification_status": "STRUCTURALLY_VERIFIED",
      "verification_note": "URL and source classification are preserved from Phase 11. Publication/revision and retrieval dates remain null unless already present in Revive."
    }
  ],
  "review": {
    "visible_page_review_date": null,
    "source_date_coverage": {
      "dated_sources": 0,
      "total_sources": 3
    }
  },
  "governance": {
    "medical_confidence_is_not_inferred": true,
    "missing_dates_are_not_fabricated": true,
    "provenance_score_is_structural_not_clinical": true
  }
}