Product image of Metopirone 250mg ( Metyrapone ) 250mg Capsule supplied by GNH India

Metopirone 250mg

Active Ingredient:
Metyrapone
Form:
Capsule
Brand:
Metopirone
Origin:
UK

Metopirone 250mg (Metyrapone Capsule) 250mg

Metyrapone, the active ingredient in Metopirone, is a corticosteroid synthesis inhibitor presented as a 250mg capsule for oral use. It is used in diagnostic testing of adrenal insufficiency and the treatment of Cushing's syndrome.

GNH India supplies Metopirone as a licensed, GDP-compliant international pharmaceutical supplier serving hospitals and clinics worldwide.

Strength

250mg

Manufacturer / TM Owner

HRA Pharm

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Indications & Clinical Uses

Metopirone is used to test the function of the adrenal glands and the pituitary gland's ability to produce adrenocorticotropic hormone (ACTH).

  • Adrenal insufficiency: Diagnoses the ability of the adrenal glands to produce cortisol.
  • Cushing's syndrome: Helps differentiate between pituitary and adrenal causes of the condition.
  • Diagnostic testing: Evaluates the hypothalamic-pituitary-adrenocortical (HPA) axis function.

How It Works

  • Metyrapone inhibits the enzyme 11-beta-hydroxylase, which is essential for the synthesis of cortisol from 11-deoxycortisol in the adrenal cortex. By blocking this enzyme, metyrapone reduces cortisol production, leading to an increase in ACTH secretion due to the loss of negative feedback on the pituitary gland.

Side Effects

Metopirone may cause various side effects, ranging from common to serious.

Common Side Effects

  • Nausea and vomiting.
  • Dizziness or lightheadedness.
  • Headache.
  • Fatigue.
  • Skin rash.
  • Abdominal pain.

Serious or Rare Side Effects

  • Acute adrenal insufficiency.
  • Hypotension.
  • Allergic reactions.
  • Severe gastrointestinal irritation.

Precautions & Warnings

Metopirone should be used with caution and under medical supervision.

  • Pregnancy: Use only if clearly needed, as it is classified as Pregnancy Category C.
  • Adrenal insufficiency: Avoid in patients with known adrenal insufficiency.
  • Monitoring: Regular monitoring of cortisol and ACTH levels is essential.
  • Prophylactic cortisone: Administer prophylactic cortisone acetate to prevent adrenal crisis.
  • Store below 25°C: Keep in the original pack, protect from moisture.

Avoid Interactions

Metopirone can interact with other medications, potentially affecting its efficacy or increasing the risk of side effects.

Major Interactions (Avoid)

  • Corticosteroids: Avoid concurrent use as they can interfere with diagnostic testing.
  • Drugs affecting pituitary or adrenocortical function: Discontinue prior to and during testing.

Moderate Interactions (Monitor Closely)

  • Antihypertensives: Monitor for hypotension.
  • Antidiabetic drugs: Monitor blood glucose levels.
  • CYP3A4 inhibitors: May increase metyrapone levels.

Frequently Asked Questions

Metopirone is used primarily for diagnostic testing of adrenal insufficiency and to differentiate between pituitary and adrenal causes of Cushing's syndrome. It helps evaluate the function of the hypothalamic-pituitary-adrenocortical (HPA) axis by inhibiting cortisol synthesis.

Metyrapone works by inhibiting the enzyme 11-beta-hydroxylase, which is crucial for the synthesis of cortisol from 11-deoxycortisol in the adrenal cortex. This inhibition leads to a decrease in cortisol levels, which in turn increases the secretion of adrenocorticotropic hormone (ACTH) due to the loss of negative feedback on the pituitary gland.

The dosage of Metopirone is determined by a healthcare provider based on the patient's weight and specific medical condition. Typically, a single dose of 30 mg/kg is administered at midnight with food to reduce gastrointestinal irritation.

Metopirone is classified as Pregnancy Category C, meaning it should be used during pregnancy only if clearly needed. The potential benefits must be weighed against the potential risks to the fetus. Always consult a healthcare provider before use.

To order Metopirone from GNH India, submit an enquiry on the product page at gnhindia.com with the required quantity. GNH India supplies hospitals, pharmacies, and procurement teams across international markets. The team will reply with pricing, availability, shipping details, and the necessary import paperwork.

Metopirone is specifically used for diagnostic testing of adrenal and pituitary function by inhibiting cortisol synthesis. It is different from other drugs like cosyntropin, which is used to stimulate cortisol production. The choice of drug depends on the specific diagnostic needs.

Metopirone should be stored below 25°C, in the original pack, and protected from moisture. Ensure the capsules are kept in a cool, dry place away from direct sunlight and out of reach of children.

Metopirone is administered orally, typically as a single dose of 30 mg/kg at midnight with food to reduce gastrointestinal irritation. The dose is usually given with yogurt or milk to enhance absorption.

The most serious risks associated with Metopirone include acute adrenal insufficiency, hypotension, and severe gastrointestinal irritation. Patients should be monitored closely for signs of adrenal crisis, and prophylactic cortisone acetate may be administered to prevent adverse effects.

Metopirone should not be used by patients with known adrenal insufficiency or those who are hypersensitive to metyrapone. It should be used with caution in pregnant women and those with severe liver or kidney disease. Always consult a healthcare provider before use.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

References

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