Medroxyprogesterone Acetate (Medroxyprogesterone acetate) 150 mg

INJECTION, SUSPENSION, EXTENDED RELEASEINTRAMUSCULARAmphastar Pharmaceuticals, Inc.NDC: 0548-5400Updated: Mar 2026

Active Ingredient

Medroxyprogesterone acetate — 150 mg

Inactive Ingredients (Fillers)

⚠️ 3 ingredients flagged as common allergens

Methylparaben

⚠️ Yes — Parabens

Preservative

Polyethylene Glycol 3350

⚠️ Yes — PEG

Coating/Osmotic Agent

Propylparaben

⚠️ Yes — Parabens

Preservative

Hamamelis Virginiana Top Water

Skin Conditioner

Hydrochloric Acid

pH Adjuster

Polysorbate 80

Emulsifier/Solubilizer

Sodium Chloride

Tonicity Agent

Sodium Hydroxide

pH Adjuster

Ingredient	Purpose	Common Allergen?	Description
Methylparaben	Preservative	⚠️ Yes — Parabens	A preservative used to prevent microbial growth. Can cause allergic contact dermatitis in sensitive individuals.
Polyethylene Glycol 3350	Coating/Osmotic Agent	⚠️ Yes — PEG	A higher-molecular-weight PEG used in tablet coatings and as the active ingredient in osmotic laxatives (MiraLAX). Rare PEG allergies documented.
Propylparaben	Preservative	⚠️ Yes — Parabens	A paraben preservative used to prevent microbial growth. Can cause contact dermatitis in paraben-sensitive individuals.
Hamamelis Virginiana Top Water	Skin Conditioner	No	Witch hazel distillate, a plant-derived astringent used in topical formulations to soothe and tone the skin.
Hydrochloric Acid	pH Adjuster	No	A strong acid used in small amounts to adjust the pH of pharmaceutical solutions. Neutralized in the final product.
Polysorbate 80	Emulsifier/Solubilizer	No	A non-ionic surfactant used to dissolve and stabilize ingredients that do not mix well with water. Derived from sorbitol and oleic acid. Rare hypersensitivity reactions reported.
Sodium Chloride	Tonicity Agent	No	Common table salt. Used to adjust the osmotic pressure of injectable and ophthalmic solutions to match body fluids.
Sodium Hydroxide	pH Adjuster	No	A strong alkali used to adjust the pH of pharmaceutical solutions. Present only in trace amounts in the final product.

Exclusion Groups

This medication contains ingredients flagged in the following groups. Patients with these sensitivities should consult their prescriber.

🔴Alpha-Gal Syndrome 🌱Not Vegan ☪️Halal Concern ✡️Kosher Concern 🥦Not Vegetarian

AllergenMaps

Ingredient

Purpose

Common Allergen?

Methylparaben

Preservative

⚠️ Yes — Parabens

Polyethylene Glycol 3350

Coating/Osmotic Agent

⚠️ Yes — PEG

Propylparaben

Preservative

⚠️ Yes — Parabens

Hamamelis Virginiana Top Water

Skin Conditioner

Hydrochloric Acid

pH Adjuster

Polysorbate 80

Emulsifier/Solubilizer

Sodium Chloride

Tonicity Agent

Sodium Hydroxide

pH Adjuster