Is Magnesium Stearate halal?
Magnesium Stearate is classified uncertain for halal use with Medium confidence. A salt of stearic acid used as a flow agent in tablets and capsules. Stearic acid can be plant- or animal-derived; manufacturers rarely disclose the source.
Excipient (lubricant) · Confidence: Medium
Also known as: magnesium octadecanoate, Mg stearate
Related excipients
Ranked by co-formulation in our medicine catalog, shared concern codes, and compare guides.
Excipient (filler)
Used together in 81 medicines in our catalog
Capsule material / coating
Used together in 62 medicines in our catalog
Excipient (filler/binder)
Used together in 22 medicines in our catalog
A salt of stearic acid used as a flow agent in tablets and capsules.
Prevents powder from sticking to manufacturing equipment.
Stearic acid can be plant- or animal-derived; manufacturers rarely disclose the source.
- Palm oil
- Vegetable
- Tallow (animal)
Questions to ask
- Is the magnesium stearate in this product plant-derived?
- Can you confirm the source with the manufacturer?
Other alternatives to ask about
Not yet separate pages in our library — discuss with your pharmacist or prescriber.
- Manufacturer with disclosed plant source
- Stearate-free formulations
Possible alternatives
- Manufacturer with disclosed plant source
- Stearate-free formulations
Always confirm changes with your clinician.
Reason codes
Evidence & citations1
AuditCommon questions
- Is Magnesium Stearate halal?
- RxHalal currently classifies Magnesium Stearate as UNCERTAIN (Medium confidence). Stearic acid can be plant- or animal-derived; manufacturers rarely disclose the source. This is information only — not a fatwa or medical advice.
- What is Magnesium Stearate used for in medicines?
- A salt of stearic acid used as a flow agent in tablets and capsules. Prevents powder from sticking to manufacturing equipment.
- What are common sources of Magnesium Stearate?
- Common sources include: Palm oil; Vegetable; Tallow (animal). Manufacturers often do not disclose which source is used.
- Is the magnesium stearate in this product plant-derived?
- Ask your pharmacist or prescriber. RxHalal lists this because Magnesium Stearate is uncertain in our cited database.
- Can you confirm the source with the manufacturer?
- Ask your pharmacist or prescriber. RxHalal lists this because Magnesium Stearate is uncertain in our cited database.
- What are alternatives to Magnesium Stearate in medicines?
- Possible alternatives mentioned in our database: Manufacturer with disclosed plant source; Stearate-free formulations. Always confirm with a clinician before switching.
Medicines using this excipient
- Amoxicillin 500 mg Capsule· Sandoz Inc.Uncertain
- Amoxicillin 500 mg Tablet· Teva PharmaceuticalsUncertain
- Metformin 500 mg Tablet· Teva PharmaceuticalsUncertain
- Lisinopril 10 mg Tablet· Lupin PharmaceuticalsUncertain
- Atorvastatin 20 mg Tablet· PfizerUncertain
- Ibuprofen 200 mg Tablet· AdvilUncertain
Seen most often in these conditions
Where this excipient turns up across RxHalal's tracked treatment categories.
- Hypertension15 of 15 (100%)
- Allergies9 of 12 (75%)
- Pain & Fever9 of 12 (75%)
- Infections (Antibiotics)8 of 10 (80%)
- Depression & Anxiety7 of 9 (78%)
Showing top 5 of 22 matched conditions.
Smallest set of questions to ask
AI suggests the fewest questions that would resolve the uncertainty.
Offline: the questions listed above are available without AI.