Fenoxene 50mg Injection

Phenoxybenzamine (50mg)

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required

Fenoxene 50mg Injection is a medicine used to treat high blood pressure associated with tumor of the adrenal glands called Pheochromocytoma. Lowering blood pressure helps to prevent future heart attack and stroke.

Written By Dr. Subita Alagh, BDS,
Reviewed By Dr. Rajeev Sharma, MBA, MBBS,
Last updated on 05 Sep 2026 | 01:02 AM (IST)

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General Information

Contains

Phenoxybenzamine (50mg)

Marketer

Samarth Life Sciences Pvt Ltd

Storage

Store below 30°C

The content is shown in English

Product introduction

Fenoxene 50mg Injection is given by or under the supervision of a doctor. You should take it in the dose and duration as advised by the doctor. It is important to take it even if you feel well or if your blood pressure is controlled. Most people with high blood pressure do not feel ill, but if you stop taking this medicine, your condition could get worse. Your doctor will decide the time period till which you need to take this medicine.

Making some changes in your lifestyle will also help to lower your blood pressure. These may include regular exercise, losing weight, smoking cessation, reducing alcohol intake, and reducing the amount of salt in your diet as advised by your doctor. This medicine is tolerated well by most patients but it has few side effects also. Some patients may experience dizziness and sudden lowering of blood pressure on standing. Other side effects include nausea, vomiting, ejaculation disorder, and increased heart rate. Let your doctor know if these side effects bother you or do not go away.

Before taking this medicine, let your doctor know if you have any heart or kidney disease. Pregnant or breastfeeding mothers should also consult their doctor before taking it. Your doctor may check your kidney function, heart rate and blood pressure at regular intervals while you are taking this medicine.

Uses of Fenoxene Injection

Hypertension (high blood pressure)

Benefits of Fenoxene Injection

Hypertension (high blood pressure)
Hypertension (high blood pressure) is a long-term condition where the force of the blood against the artery walls is consistently too high, which increases the risk of heart attack, stroke, and other health problems. Fenoxene 50mg Injection helps by relaxing and widening the blood vessels, allowing blood to flow more easily. This helps lower blood pressure and reduces strain on the heart and arteries, helping prevent complications.

How to use Fenoxene Injection

Your doctor or nurse will give you this medicine. Kindly do not self administer.

How Fenoxene Injection works

Fenoxene 50mg Injection is an alpha blocker which helps reduce blood pressure in pheochromocytoma (a tumour of the adrenal gland). It works by opposing the action of certain hormones released from the tumor that cause the blood vessels to narrow and raise blood pressure.

All substitutes for Fenoxene 50mg Injection

For information purposes only. Consult a doctor before taking any medicine.

Zaxyben 50mg Injection

by Molekule India Pvt Ltd

₹1658.16/injection

26% cheaper

Biophenox 50mg Injection

by United Biotech Pvt Ltd

₹1598.44/injection

29% cheaper

Quick tips

Fenoxene 50mg Injection is given as a drip into a vein (intravenous infusion) under the supervision of a doctor.
Take it in addition to lifestyle modification with regular exercise, a balanced diet, and smoking cessation.
To lower the chance of feeling dizzy or passing out, rise slowly if you have been sitting or lying down.
It may cause dizziness or sleepiness. Do not drive or do anything that requires concentration until you know how it affects you.
Inform your doctor if you are pregnant, planning pregnancy or breastfeeding.

Safety advice

Alcohol

UNSAFE

Do not drink alcohol while you are taking this medicine. Fenoxene 50mg Injection may cause excessive drowsiness when taken with alcohol.

Pregnancy

CONSULT YOUR DOCTOR

The safety of Fenoxene 50mg Injection during pregnancy has not been established. There are no adequate and well-controlled studies in pregnant women, and animal data on reproductive toxicity are insufficient. Your doctor will weigh the benefits and any potential risks before prescribing.

Breast feeding

CONSULT YOUR DOCTOR

Fenoxene 50mg Injection may be unsafe to use during breastfeeding. Limited human data suggests that the drug may pass into the breastmilk and harm the baby. It should be used only if the expected benefit outweighs the potential risk. Please consult your doctor.

Driving

CAUTION

Fenoxene 50mg Injection may cause dizziness or weakness due to changes in blood pressure. Do not drive if these symptoms occur.

Kidney

CAUTION

Fenoxene 50mg Injection should be used with caution in patients with kidney disease. Dose adjustment may be needed.
Use of Fenoxene 50mg Injection is not recommended in patients with serious kidney disease.

Liver

CAUTION

Fenoxene 50mg Injection should be used with caution in patients with liver disease. Dose adjustment may be needed.

Frequently asked questions

How long should Fenoxene 50mg Injection be taken?

You should take it as long as your doctor has recommended it to you. Do not stop taking it without talking to you doctor first. Long-term use of Fenoxene 50mg Injection is not recommended as cases of developing cancer have been reported. Consult your doctor before starting the treatment.

Who should not use Fenoxene 50mg Injection?

Fenoxene 50mg Injection should not be given to patients who are allergic to it. Additionally, in patients with a recent history (within the last month) of stroke or heart attack, Fenoxene 50mg Injection should be avoided. Tell your doctor if any of these conditions apply to you.

How does Fenoxene 50mg Injection cause tachycardia?

Fenoxene 50mg Injection belongs to alpha receptor blockers class of medicines. Alpha receptors blockade decreases resistance thereby increasing blood flow to the skin, mucosa (membrane that lines various cavities of the body), and abdominal viscera (membrane lining the abdomen). This results in lowering of blood pressure. This reduced blood pressure and increased release of chemical messenger (noradrenaline) results in reflex tachycardia.

Why is Fenoxene 50mg Injection used for pheochromocytoma?

Fenoxene 50mg Injection helps in reducing the increased blood pressure caused by Pheochromocytoma. It is a tumor of the adrenal glands. It causes the release of certain substances (catecholamines) from the adrenal glands into the bloodstream in large quantities, causing high blood pressure. Fenoxene 50mg Injection works by blocking alpha receptors, thereby decreasing blood pressure.

What are the advantages of using Fenoxene 50mg Injection in pheochromocytoma?

Using Fenoxene 50mg Injection in pheochromocytoma is beneficial due to its long duration of action leading to twice daily dosing. Along with that, it prevents episodic increase of catecholamine releases during pre- and post-operative period which helps in keeping the blood pressure under control during surgical procedures.

What are other uses of Fenoxene 50mg Injection?

Fenoxene 50mg Injection is sometimes effective in treating Raynaud’s phenomenon. This condition results in discoloration of the fingers and/or toes after exposure to changes in temperature (cold or hot) or emotional events. Fenoxene 50mg Injection is also useful in treating frostbite.

Can Fenoxene 50mg Injection affect sex life?

Yes, use of Fenoxene 50mg Injection may affect sex life. It may cause inhibition of ejaculation and may make the patient impotent. However, these effects are generally mild and lasts for only a short time. Discuss with your doctor if you experience this.

What are the symptoms of overdose of Fenoxene 50mg Injection?

Taking more than the recommended dose of Fenoxene 50mg Injection may cause significant decrease in blood pressure which may last for several hours, increased heartbeat, and one may even collapse. If you accidentally take an overdose of this medicine, contact your doctor and seek immediate medical help.

How quickly does Fenoxene 50mg Injection work?

The maximum effect of Fenoxene 50mg Injection is attained in about 1 hour after the dose. However, it may take several hours to see the effect after a single oral dose. These effects may persist for 3-4 days.

Fact Box

Chemical Class

Phenylmethylamines

Habit Forming

Therapeutic Class

CARDIAC

Action Class

Non-Selective Alpha-Adrenergic Antagonists

Related lab tests

Kidney Function Test

References

Westfall TC, WestfallIn DP. Adrenergic Agonists and Antagonists. In: Brunton LL, Chabner BA, Knollmann BC, editors. Goodman & Gilman’s: The Pharmacological Basis of Therapeutics. 12th ed. New York, New York: McGraw-Hill Medical; 2011. pp. 309-10.
Robertson D, Biaggioni I. Adrenoceptor Antagonist Drugs. In: Katzung BG, Masters SB, Trevor AJ, editors. Basic and Clinical Pharmacology. 11th ed. New Delhi, India: Tata McGraw Hill Education Private Limited; 2009. p. 152.
Briggs GG, Freeman RK, editors. A Reference Guide to Fetal and Neonatal Risk: Drugs in Pregnancy and Lactation. 10th ed. Philadelphia, PA: Wolters Kluwer Health; 2015. pp. 1106-107.

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Disclaimer

Tata 1mg's sole intention is to ensure that its consumers get information that is expert-reviewed, accurate and trustworthy. However, the information contained herein should NOT be used as a substitute for the advice of a qualified physician. The information provided here is for informational purposes only. This may not cover everything about particular health conditions, lab tests, medicines, all possible side effects, drug interactions, warnings, alerts, etc. Please consult your doctor and discuss all your queries related to any disease or medicine. We intend to support, not replace, the doctor-patient relationship.

Marketer details

Name: Samarth Life Sciences Pvt Ltd
Address: Samarth House, 168, Bangur Nagar, Off Link Road, Near Ayappa Temple & Kallol Kali Temple, Goregaon (W), Mumbai - 400 090.

Vendor Details

Country of origin: India

Lab tests offered by us

Why we need a prescription?

Home

Cardiac

Cerebral And Peripheral Vasotherapeutics

Fenoxene 50mg Injection

Fenoxene 50mg Injection

Save more with additional offers

General Information

Contains

Marketer

Storage

Product introduction

Uses of Fenoxene Injection

Benefits of Fenoxene Injection

How to use Fenoxene Injection

How Fenoxene Injection works

All substitutes for Fenoxene 50mg Injection

Zaxyben 50mg Injection

Biophenox 50mg Injection

Quick tips

Safety advice

Alcohol

Pregnancy

Breast feeding

Driving

Kidney

Liver

Frequently asked questions

How long should Fenoxene 50mg Injection be taken?

Who should not use Fenoxene 50mg Injection?

How does Fenoxene 50mg Injection cause tachycardia?

Why is Fenoxene 50mg Injection used for pheochromocytoma?

What are the advantages of using Fenoxene 50mg Injection in pheochromocytoma?

What are other uses of Fenoxene 50mg Injection?

Can Fenoxene 50mg Injection affect sex life?

What are the symptoms of overdose of Fenoxene 50mg Injection?

How quickly does Fenoxene 50mg Injection work?

Fact Box

Chemical Class

Habit Forming

Therapeutic Class

Action Class

Related lab tests

Kidney Function Test

References

User feedback

What are you using Fenoxene Injection for?

Want to know more

Have issue with the content

Disclaimer

Marketer details

Vendor Details

Lab tests offered by us

Related/Popular tests