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About Semaglutide: The GLP-1 Gastric Slowing Effect

Semaglutide produces significant gastric emptying delay — one of the strongest gastric slowing effects in the GLP-1 class. This applies to all three brand forms. Rybelsus (oral semaglutide) adds a second oral-GI variable: it must be taken fasting with only 4 oz of water at least 30 minutes before food. Oral cannabis products taken near the Rybelsus dosing window create direct absorption timing conflicts.

MethodAffected by GLP-1?Onset on SemaglutidePrimary Risk
EdiblesYes — significantly delayed2–4+ hours⚠️ Caution
SmokingNo — lung absorption1–10 min (unchanged)🔵 Moderate
VapingNo — lung absorption1–10 min (unchanged)🔵 Moderate
TincturesPartial — depends on techniqueMixed (15 min–4+ hours)🔵 Moderate
CBD OilYes — oral absorption delayed2–4+ hours🔵 Moderate

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