Is Prometrium vegetarian or vegan-friendly?
Vegetarian and vegan patients sometimes ask whether their medication contains animal-derived ingredients. The active substance Progesterone in Prometrium is almost always synthetically produced; the question typically concerns excipients in the tablet or capsule shell at 100mg, 200mg.
Animal-derived excipients in Prometrium
Common animal-derived excipients in pharmaceuticals include gelatin (in capsule shells, derived from porcine or bovine sources), lactose (dairy-derived), and certain magnesium stearate sources. The prescribing information and patient leaflet for Progesterone list excipients; whether they are animal-derived is sometimes specified, sometimes left ambiguous. Progesterone in Prometrium binds to progesterone receptors and modulates gene expression in reproductive and other tissues.
Practical guidance
According to general pharmacy practice, vegetarians and vegans concerned about Prometrium excipients should ask the pharmacist or manufacturer directly. Many medications have authorised generic versions with different excipient profiles — switching to a generic of Progesterone with vegetable-derived excipients is sometimes possible at 100mg, 200mg. For strict requirements (e.g. religious or strong ethical), specialist pharmacy consultation gives definitive answers.
Frequently asked questions
Does Prometrium contain gelatin? ▾
Whether Prometrium contains gelatin depends on the formulation — capsule shells often do, tablet coatings sometimes do. The patient leaflet for Progesterone at 100mg, 200mg lists excipients; the manufacturer or pharmacist can confirm gelatin source if not explicitly stated.
Is Prometrium suitable for vegans? ▾
Most modern tablet formulations are vegan-compatible (active ingredient synthetic, excipients usually plant or mineral), but capsule shells and some coatings may use animal-derived components. For strict vegan requirements, confirm with the manufacturer or pharmacist for the specific Prometrium product.
More on Prometrium
- With alcoholPrometrium and alcohol — is it safe to drink?
- With foodShould Prometrium be taken with food?
- Side effectsPrometrium side effects: common, rare and warning signs
- Dosage guidePrometrium dosage guide: how much to take and when
- OnsetHow fast does Prometrium start working?
- DurationHow long does Prometrium last?
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.