PharmaGEO Research Hub.

Eighteen field reports anchored on the May 2026 PharmaGEO public index and primary GEO research from Princeton, Ahrefs, IQVIA, and the BMJ. Hard data on what generative engines say about pharma brands across six engines, three languages, and four therapeutic areas — and what to do about it.

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The PharmaGEO Playbook 2026 edition.

The playbook our analysts ship to launch teams. Eight doctrines, the search architecture LLMs reward, engine-by-engine guidance, and a 90-day mobilization plan, anchored on cross-engine and cross-language pharma data.

✓State of GEO in pharma in 2026
✓Recent sources prioritization trends
✓Best practices for Pharma Brands
✓GEO in MLR
✓Owned vs Third party strategies

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Vol. II

The Reliability Tax

The PharmaGEO Playbook for Pharma

Field-tested tactics from auditing 23 pharma brands across 8 LLMs.

Article

The French market GEO gap

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Every article is built from real audit data, with citations to peer-reviewed sources where relevant.

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No. 18 · Comparison

PharmaGEO vs generic GEO tools.

Why pharma GEO is structurally different from B2C GEO, and how PharmaGEO compares with Profound, Evertune, Otterly, Peec.ai, Semrush, and Ahrefs.

Read · 8 min

No. 17 · Engines

There is no AI visibility. There are six.

The same brand can be #4 in OpenAI and #8 in Perplexity in the same week. A 33-point gap, decoded across four therapeutic areas.

Read · 11 min

No. 16 · Language

The language geography of AI visibility.

One molecule, three Answer Rates: 13.8% in English, 48.8% in French, 51.9% in Spanish. Why localization is not translation.

Read · 9 min

No. 15 · Sources

The citation source stack changes by therapeutic area.

NCCN ~85% in oncology. FDA labels lead in obesity. A specialist hub outranks NICE in psoriasis. There is no universal source playbook.

Read · 10 min

No. 14 · Metrics

Why answer rate and share of voice tell different stories.

A brand named in 93% of answers can hold only 22% of the conversation. The 4x compression every brand team should be measuring.

Read · 8 min

No. 13 · Mobilization

The 90-day pharma GEO mobilization plan.

Twelve weeks, three phases, named owners and KPI targets. The operating plan brand teams ship after the audit.

Read · 12 min

No. 12 · Pharmacovigilance

AI is already a pharmacovigilance surface.

FDA labels are the #1 and #2 cited sources in obesity prompts. Engines are already delivering boxed warnings — and surfacing T2D-only molecules on weight-loss queries.

Read · 10 min

No. 11 · Findings

8 key GEO findings every pharma brand needs.

Eight findings from the May 2026 PharmaGEO public index across obesity, lung cancer, atopic dermatitis, and psoriasis.

Read · 10 min

No. 10 · Benchmark

Benchmarking pharma brands across three engines.

A public-data benchmark across OpenAI, Perplexity, and Gemini in four therapeutic areas. Same brand, three rankings.

Read · 13 min

No. 09 · Optimize

The owned content playbook for the AI answer layer.

Eight tactics anchored on Princeton GEO research, Ahrefs brand-mention correlations, and the public PharmaGEO source data.

Read · 12 min

No. 08 · Methodology

How LLMs cite pharma sources, decoded.

Four source archetypes, four therapeutic areas, and the propagation chain that decides which domain wins citations.

Read · 12 min

No. 07 · Behavior

How HCPs are using AI search in 2026.

54% of HCPs use generative AI in clinical contexts (IQVIA). OpenEvidence hit one million consultations in a single day. What HCPs ask, and what they see.

Read · 9 min