You're offline — scan, search, vaccines, and full label analysis still work on-device. AI photo OCR and enhancement need a connection.

Skip to main content
RxHalalRxHalal
Library

Is Sodium Stearyl Fumarate halal?

Sodium Stearyl Fumarate is classified uncertain for halal use with Medium confidence. A non-hygroscopic alternative to magnesium stearate; the salt of stearyl alcohol and fumaric acid. Like other stearates, the underlying stearyl group can be plant- or animal-derived. Manufacturers rarely disclose.

Excipient (lubricant) · Confidence: Medium

Also known as: SSF

Uncertain Ask pharmacist
Find medicines containing Sodium Stearyl Fumarate
What it is

A non-hygroscopic alternative to magnesium stearate; the salt of stearyl alcohol and fumaric acid.

Source:FDA IIG — Sodium stearyl fumarate

Why it's here

Tablet lubricant; preferred when magnesium stearate causes incompatibilities.

See:FDA IIG — Sodium stearyl fumarate

Why it may matter

Like other stearates, the underlying stearyl group can be plant- or animal-derived. Manufacturers rarely disclose.

Source:FDA IIG — Sodium stearyl fumarate

Common sources
  • Palm/coconut oil
  • Tallow (animal fat)

Questions to ask

  • Is the stearyl group in this product plant-derived?

Reason codes

stearateSourceUnknown

Evidence & citations1

Audit

Common questions

Is Sodium Stearyl Fumarate halal?
RxHalal currently classifies Sodium Stearyl Fumarate as UNCERTAIN (Medium confidence). Like other stearates, the underlying stearyl group can be plant- or animal-derived. Manufacturers rarely disclose. This is information only — not a fatwa or medical advice.
What is Sodium Stearyl Fumarate used for in medicines?
A non-hygroscopic alternative to magnesium stearate; the salt of stearyl alcohol and fumaric acid. Tablet lubricant; preferred when magnesium stearate causes incompatibilities.
What are common sources of Sodium Stearyl Fumarate?
Common sources include: Palm/coconut oil; Tallow (animal fat). Manufacturers often do not disclose which source is used.
Is the stearyl group in this product plant-derived?
Ask your pharmacist or prescriber. RxHalal lists this because Sodium Stearyl Fumarate is uncertain in our cited database.

Medicines using this excipient

1 total0 halal1 uncertain0 concern

Seen most often in these conditions

Where this excipient turns up across RxHalal's tracked treatment categories.

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.