Fenoxene 50mg Injection

Prescription 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.

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

Benefits of Fenoxene Injection

In Hypertension (high blood pressure)

If your blood pressure is controlled you are less at risk of having a heart attack or stroke. Fenoxene 50mg Injection reduces the chances of heart diseases and helps you remain healthier for longer. Take it regularly and make appropriate lifestyle changes, such as eating healthy and staying active, to maximize the effectiveness of this medicine.

Side effects of Fenoxene Injection

Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them

Common side effects of Fenoxene

  • Nasal congestion (stuffy nose)
  • Orthostatic hypotension (sudden lowering of blood pressure on standing)
  • Ejaculation disorder
  • Vomiting
  • Increased heart rate
  • Nausea
  • Constriction of pupil

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.

Safety advice

Fenoxene 50mg Injection may cause excessive drowsiness with alcohol.
Fenoxene 50mg Injection may be unsafe to use during pregnancy. Although there are limited studies in humans, animal studies have shown harmful effects on the developing baby. Your doctor will weigh the benefits and any potential risks before prescribing it to you. Please consult your doctor.
Breast feeding
Fenoxene 50mg Injection is probably unsafe to use during breastfeeding. Limited human data suggests that the drug may pass into the breastmilk and harm the baby.
Fenoxene 50mg Injection may decrease alertness, affect your vision or make you feel sleepy and dizzy. Do not drive if these symptoms occur.
Fenoxene 50mg Injection should be used with caution in patients with kidney disease. Dose adjustment of Fenoxene 50mg Injection may be needed. Please consult your doctor.
Use of Fenoxene 50mg Injection is not recommended in patients with serious kidney disease.
There is limited information available on the use of Fenoxene 50mg Injection in patients with liver disease. Please consult your doctor.

What if you forget to take Fenoxene Injection?

If you miss a dose of Fenoxene 50mg Injection, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular schedule. Do not double the dose.

Alternate brands

For informational purposes only. Consult a doctor before taking any medicines.
Fenoxene 50mg Injection
Biophenox 50mg Injection
United Biotech Pvt Ltd
29% cheaper
Zaxyben 50mg Injection
Molekule India Pvt Ltd
26% 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.

Fact Box

Chemical Class
Habit Forming
Therapeutic Class
Action Class
Adrenergic receptor antagonist - non selective

Interaction with drugs

Taking Fenoxene with any of the following medicines can modify the effect of either of them and cause some undesirable side effects
Brand(s): Atazor, Atavir, Virataz
Brand(s): Fungis, EF Z, Rocflu
Brand(s): Inbec, Indease, Indivan
Brand(s): Indizole

Patient concerns

I am a patient of hypertension
Dr. Jyoti Kapoor Madan
Hypertension is clinal condition of high blood pressure. Please see a physician.
Some times I had lot of hypertension
Dr. Jyoti Kapoor Madan
Hypertension is clinically high blood pressure. Persistent high arterial blood pressure above 120/80 mm HG is termed as pre-hypertension or hypertension, but the point to be emphasized is that this rise in blood pressure is persistent. Transient increase in BP occurs in stress and anxiety and needs to be treated accordingly.
Do you have any questions related to Fenoxene 50mg Injection ?

User feedback


Q. 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.

Q. 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.

Q. 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.

Q. 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.

Q. 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.

Q. 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.

Q. 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.

Q. 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.

Q. 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.

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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 all possible side effects, drug interactions or warnings or alerts. 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.


  1. 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.
  2. 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.
  3. 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.

Manufacturer/Marketer address

Samarth House, 168, Bangur Nagar, Off Link Road, Near Ayappa Temple & Kallol Kali Temple, Goregaon (W), Mumbai - 400 090.
Country of origin: India

Expires on or after: October, 2021

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