Is Lantus SoloStar (insulin glargine) halal?

Active ingredient(s)

• Insulin glargine 100 U/mL (rDNA origin)

Inactive ingredients

3 halal · 2 uncertain · 0 concern — flagged: Glycerin, Polysorbate 20

• Glycerin

  Humectant/solvent
  Uncertain
• Metacresol

  Excipient (preservative)
  Looks Halal
• Zinc Chloride

  Excipient (stabiliser)
  Looks Halal
• Sodium Chloride

  Excipient (tonicity)
  Looks Halal
• Polysorbate 20

  Excipient (surfactant)
  Uncertain

Used to treat

• Diabetes (Type 2)

Why this status

What to do next

1. Do not stop your medicine without speaking to your clinician.
2. Ask your pharmacist about the source of any flagged excipients (e.g., stearate, gelatin, glycerin).
3. Ask whether a different manufacturer or formulation has a clearer ingredient profile.
4. If fiqh nuance applies (e.g., ethanol or animal-derived), consult a qualified scholar.
5. Save to My Meds to track and re-check later.

• DailyMed — Lantus prescribing infoRegulatorHigh confidencedailymed.nlm.nih.gov
• FDA — Insulin glargine approval historyRegulatorHigh confidencewww.fda.gov
• Glycerin — USPScholarlyMedium confidencewww.usp.org
• Metacresol — FDA IIG — m-CresolRegulatorHigh confidencewww.accessdata.fda.gov
• Zinc Chloride — FDA IIG — Zinc chlorideRegulatorHigh confidencewww.accessdata.fda.gov
• Sodium Chloride — FDA IIG — Sodium chlorideRegulatorHigh confidencewww.accessdata.fda.gov
• Polysorbate 20 — FDA IIG — Polysorbate 20RegulatorHigh confidencewww.accessdata.fda.gov
• Polysorbate 20 — EFSA — Polysorbates (E432–E436)ScholarlyMedium confidencewww.efsa.europa.eu

Halal-friendlier alternatives

Ranked by status and flagged excipients in our database. Your clinician must approve any switch.

Top pick: Insulin Glargine 100 units/mL — Fewer flagged excipients (1 vs 2).

• Insulin Glargine 100 units/mL

  Sanofi · Injection (pen)

  Fewer flagged excipients (1 vs 2).

  Same active
  Looks Halal
• NovoLog FlexPen (insulin aspart, rDNA)

  Novo Nordisk · Subcutaneous injection (pen)

  Fewer flagged excipients (1 vs 2).

  Same active
  Looks Halal
• Ozempic 0.5 mg Pen (semaglutide)

  Novo Nordisk · Subcutaneous injection (pen)

  Fewer flagged excipients (1 vs 2).

  Same condition
  Looks Halal