METYROSINE is a Schedule H drug.
Metyrosine is given before surgery to control pheochromocytoma, and is also given when surgery is not possible.This medication is a catecholamine synthesis inhibitor, prescribed for pheochromocytoma.  It reduces the amount of catecholamines in the body. Metyrosine is used to prevent high blood pressure before and immediately after surgery to remove the tumor. It is also used long-term in people who cannot have the surgery. It is not used for other kinds of high blood pressure. Lowering the amount of catecholamines lessens the risk of a very serious attack of high blood pressure


METYROSINE is generally used to treat: Pheochromocytoma
METYROSINE can address symptoms like: Head Headache, Rapid Heart Rate (pulse), Body Excessive Sweating, Palpitations (fluttering In Chest), Dizziness, Shortness Of Breath, Weight Loss (unintentional)

Frequently Asked Questions

Q: Is it safe on my liver?
A: Check with your Doctor first

Q: Is it safe on my kidney?
A: Check with your Doctor first

Q: Can I take it with alcohol?
A: Not Safe

Q: Is it safe for children?
A: Not Advised for age < 12yrs

Q: Can it be taken during pregnancy?
A: Not enough studies to prove Risk – Ask your Doctor

Q: Is it safe to take for someone breastfeeding?
A: Check with your Doctor first

How Do I Take It?

Route of Administration: Oral


  • Avoid drinking alcohol. It can increase some of the side effects of metyrosine.
  • Drink plenty of fluid every day–at least six to eight full glasses (8 ounces)–to prevent metyrosine crystals from forming in your urine.
  • You should not use this medication if you are allergic to metyrosine.Take this medication exactly as prescribed by your doctor. Do not take it in larger amounts or for longer than recommended. Follow the directions on your prescription label.
  • Take metyrosine with a full glass of water.
  • Do not take extra medicine to make up the missed dose.
  • Metyrosine can cause side effects that may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be awake and alert.

Symptoms of Overdosage

METYROSINE over-dosage can result in: Jaws Stiffness, Drowsiness, Anxiety

Common Side-Effects

METYROSINE : Diarrhoea, Impotence, Head Headache, Drowsiness, Hallucinations, Disorientation, Confusion, Dry Mouth, Abdomen Pain, Abdomen Upset Stomach, Drooling, Hands Shaking, Depressed Mood, Anxiety, Runny Nose

Serious Side-Effects

METYROSINE : Depression, Acute Kidney Failure, Difficulty Talking, Muscle Stiffness, Mood Swings, Pain With Urination, Blood Or Red Colored Urine

Rare Side-Effects

METYROSINE : Skin Rash, Itchy Skin, Black (tar) Colored Stools, Bloody Or Red Colored Stools, Shortness Of Breath, Restless Or Irritability, Easy Bleeding, Feet Swelling, Fatigue (tiredness)

Technical Classification


Storage Conditions

Room Temperature (Between 15 To 25 C)

Available Alternatives

What are the other drugs with similar Ingredients?