Compare Supplements

INVESTIGATIONAL — no approved consumer dose. In trials, once-daily oral orforglipron was titrated up to 36 mg (some phase-2 cohorts to 45 mg) with gradual dose escalation to limit GI side effects. Not for self-administration; only appropriate within a clinical trial or, if/when approved, under a prescribing clinician.

Any time

Oral tablet (investigational)

Prescription Xenical: 120 mg three times daily (360 mg/day), taken with or up to 1 hour after each main fat-containing meal. Over-the-counter Alli: 60 mg three times daily (180 mg/day). Skip the dose if a meal is missed or contains no fat. Used alongside a reduced-calorie diet in which fat supplies roughly 30% of energy — a higher-fat meal makes the gastrointestinal side effects markedly worse, not the weight loss better.

With meals · with food

Xenical 120 mg capsule three times daily with meals (prescription)

• Not an approved medicine — only appropriate within a clinical trial or, if/when approved, under a clinician
• Expected: personal or family history of medullary thyroid carcinoma (MTC) or Multiple Endocrine Neoplasia syndrome type 2 (MEN2) — the GLP-1-class thyroid C-cell concern
• History of pancreatitis (caution, consistent with the GLP-1 class)

• Insulin and sulfonylureas
• Oral medications (general)
• Other GLP-1 receptor agonists

• Chronic malabsorption syndrome
• Cholestasis
• Pregnancy — intentional weight loss is not a therapeutic goal in pregnancy, and orlistat measurably lowers vitamin D and impairs vitamin E and K absorption (McDuffie 2002)

• Warfarin
• Levothyroxine (thyroxine)
• Ciclosporin (cyclosporine)