🌿 GLP-1/GIP/Glucagon triple receptor agonist (investigational)

Retatrutide (No brand name assigned (Phase 3 clinical trials as of June 2026)) and Cannabis: A Guide by Ingestion Method

GLP-1 medications like Retatrutide significantly delay gastric emptying — which directly affects how oral cannabis products are absorbed. The interaction profile differs substantially depending on whether cannabis is eaten, inhaled, or taken sublingually. This hub links to detailed guides for each method.

👨‍⚕️ Reviewed by Sanford A. Orloff, RPh (ret.) 📋 FDA & NIH Sources Only 📅 Updated June 2026

Choose Your Cannabis Method

Retatrutide (No brand name assigned (Phase 3 clinical trials as of June 2026)) — All Methods

🍬 Edibles — 2–4+ hours

Retatrutide + Edibles

Gummies, Chocolates, Capsules, Baked Goods
⚠️ Caution

🌿 Smoking — 1–10 minutes

Retatrutide + Smoking

Flower, Pre-Rolls, Joints, Pipes
🔵 Moderate

💨 Vaping — 1–10 minutes

Retatrutide + Vaping

Cartridges, Disposable Vapes, Dry Herb Vaporizers
🔵 Moderate

💧 Tinctures — Sublingual component unchanged; swallowed portion delayed 2–4+ hours

Retatrutide + Tinctures

Sublingual Drops Held Under the Tongue
🔵 Moderate

🫙 CBD Oil — Oral: delayed 2–4+ hours on GLP-1; sublingual component less affected

Retatrutide + CBD Oil

Oral CBD Drops, Softgels, High-CBD Tinctures
🔵 Moderate

About Retatrutide: The GLP-1 Gastric Slowing Effect

Why Method Matters

As a triple agonist targeting GLP-1, GIP, and glucagon receptors simultaneously, retatrutide is expected to produce gastric slowing at least equivalent to — and potentially exceeding — tirzepatide (dual agonist) and semaglutide (single agonist). Oral cannabis absorption delays are predicted to apply on mechanistic grounds, though clinical pharmacokinetic data in retatrutide patients is not yet available.

Method	Affected by GLP-1?	Onset on Retatrutide	Primary Risk
Edibles	Yes — significantly delayed	2–4+ hours	⚠️ Caution
Smoking	No — lung absorption	1–10 min (unchanged)	🔵 Moderate
Vaping	No — lung absorption	1–10 min (unchanged)	🔵 Moderate
Tinctures	Partial — depends on technique	Mixed (15 min–4+ hours)	🔵 Moderate
CBD Oil	Yes — oral absorption delayed	2–4+ hours	🔵 Moderate

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