Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm

Written By Lakshmithulasi Yarragunta , Pharm-D (PB)

Reviewed By Dr Aneela Siddabathuni , MPharma., PhD

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MRP ₹1050

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₹157.5 Cashback (15%)

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Prescription drug

Whats That

About Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm

Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm belongs to a class of drugs known as 'opioid analgesics,' primarily used to relieve pain. It is used to treat severe pain. Pain can be temporary (acute) or long-lasting (chronic) in nature. Acute pain is caused by damage to the tissues of the muscle, bone, or other organs for a short time. Chronic pain lasts for a long duration and is caused due to pathologies like nerve damage and osteoarthritis.

Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm contains Fentanyl, which is primarily used to treat pain. It works by blocking a chemical messenger in the brain responsible for causing pain. Hence, changing the way the brain and nervous system respond to pain.

Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm is an external preparation. It is mostly given by your doctor in the hospital setting. Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm may cause certain side effects such as dizziness, sleepiness, increased or decreased blood pressure, application site reactions, and irregular heartbeat in some cases. Most of these side effects do not require medical attention and will resolve gradually over time. However, you are advised to talk to your doctor if you experience these side effects persistently.

Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm should be avoided if you are allergic to it or any ingredients of it or opioids. Inform your doctor before using Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm if you have respiratory disorders, heart diseases, high blood pressure, and liver or kidney disease. Avoid consuming alcohol along with Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm as it could lead to increased dizziness. Do not use Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm for a prolonged time as it may lead to mental or physical dependence on Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm. This medicine is not recommended for children below 18 years of age. Do not use this medicine if you have used an MAO inhibitor in the past 14 days, as this combination may cause serious interaction. Blood pressure and cardiovascular (heart) status should be monitored closely during the treatment with Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm, especially in people affected with high blood pressure and a history of heart failure. Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm is not recommended for mild pain or pain that lasts for a very short time.

Uses of Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm

Pain relief

Directions for Use

Transdermal patch: It will be applied by a healthcare professional in a hospital setting.

Medicinal Benefits

Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm belongs to a class of drugs known as 'opioid analgesics,' containing Fentanyl, primarily used to relieve pain. It is used to treat severe pain. It is also used as an anaesthetic agent for short operations and relieves pain in conditions like dental surgery or tonsil surgery. It works by blocking a chemical messenger in the brain responsible for causing pain. Hence, changing the way the brain and nervous system respond to pain.

Storage

Keep Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm out of the sight and reach of children.

Side effects of Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm

Drowsiness

Avoid driving or operating machinery or activities that require high focus until you know how the medication affects you.
Maintain a fixed sleeping schedule, create a relaxing bedtime routine and ensure your sleeping space is comfortable to maximize your sleep quality.
Limit alcohol and caffeine as these may worsen drowsiness and disturb sleep patterns.
Drink plenty of water as it helps with alertness and keeps you hydrated and for overall well-being.
Moderate physical activity can improve energy levels, but avoid intense workouts right before bedtime.

Dizziness

Here are the 7 steps to manage Dizziness caused by medication:

Inform your doctor about dizziness symptoms. They may adjust your medication regimen or prescribe additional medications to manage symptoms.
Follow your doctor's instructions for taking medication, and take it at the same time every day to minimize dizziness.
When standing up, do so slowly and carefully to avoid sudden dizziness.
Avoid making sudden movements, such as turning or bending quickly, which can exacerbate dizziness.
Drink plenty of water throughout the day to stay hydrated and help alleviate dizziness symptoms.
If you're feeling dizzy, sit or lie down and rest until the dizziness passes.
Track when dizziness occurs and any factors that may trigger it, and share this information with your doctor to help manage symptoms.

Headache

Dealing with Medication-Induced Headache:

Hydrate your body: Drink enough water to prevent dehydration and headaches.
Calm Your Mind: Deep breathing and meditation can help you relax and relieve stress.
Rest and Recharge: Sleep for 7-8 hours to reduce headache triggers.
Take rest: lie down in a quiet, dark environment.
Cold or warm compresses can help reduce tension.
Stay Upright: Maintain good posture to keep symptoms from getting worse.
To treat headaches naturally, try acupuncture or massage therapy.
Over-the-counter pain relievers include acetaminophen and ibuprofen.
Prescription Assistance: Speak with your doctor about more substantial drug alternatives.
Severe Headaches: Seek emergency medical assistance for sudden, severe headaches.
Frequent Headaches: If you get reoccurring headaches, consult your doctor.
Headaches with Symptoms: Seek medical attention if your headaches include fever, disorientation, or weakness.

Nausea

Overcome Medication-Induced Nausea: A 9-Step Plan

Inform your doctor about the nausea and discuss possible alternatives to the medication or adjustments to the dosage.
Divide your daily food intake into smaller, more frequent meals to reduce nausea.
Opt for bland, easily digestible foods like crackers, toast, plain rice, bananas, and applesauce.
Avoid certain foods that can trigger nausea, such as fatty, greasy, spicy, and smelly foods.
Drink plenty of fluids, such as water, clear broth, or electrolyte-rich beverages like coconut water or sports drinks.
Use ginger (tea, ale, or candies) to help relieve nausea.
Get adequate rest and also avoid strenuous activities that can worsen nausea.
Talk to your doctor about taking anti-nausea medication if your nausea is severe.
Record when your nausea occurs, what triggers it, and what provides relief to help you identify patterns and manage your symptoms more effectively.

Vomiting

To prevent, manage, and treat Constipation caused by medication usage, follow these steps:

Preventing Vomiting (Before it Happens)
Take medication exactly as prescribed by your doctor. This can help minimize side effects, including vomiting.
Having a small meal before taking your medication can help reduce nausea and vomiting.
Talk to your doctor about taking anti-nausea medication along with your prescribed medication.
Managing Vomiting (If it Happens)
Try taking ginger in the form of tea, ale, or candy to help alleviate nausea and vomiting.
What to Do if Vomiting Persists
Consult your doctor if vomiting continues or worsens, consult the doctor for guidance on adjusting your medication or additional treatment.

Constipation

Here are the steps to cope with constipation as a side effect of medication:

Inform your doctor about your constipation symptoms. They may adjust your medication or advise alternative treatments.
Stay hydrated by drinking sufficient of water (at least 8-10 glasses a day) to help soften stool and promote bowel movements.
Increase fibre intake by eating foods high in fibre, such as fruits, whole grains, vegetables and legumes, to help bulk up the stool.
Establish a bowel routine by trying to go to the bathroom at the same time each day to train your bowels.
Engaging in regular exercise, like walking or yoga, can support in bowel movement stimulation.
Consult your doctor if constipation persists, and discuss alternative treatments or adjustments to your medication.

Allergic Reactions

Managing Medication-Related Skin Allergies: A Step-by-Step Guide

If you experience signs of skin allergies such as redness, itching, or irritation after taking medication, contact your doctor right away.
To alleviate skin allergy symptoms, your doctor may change your medication regimen or offer tailored medication management advice.
Your doctor may recommend or prescribe drugs to relieve discomfort.
Cool compresses or calamine lotion can help relieve redness and itching on the afflicted skin area.
Staying hydrated by consuming plenty of water can help relieve discomfort.
Monitor your skin condition closely and promptly report any changes, worsening symptoms, or concerns to your healthcare provider.

Drug Warnings

Do not use Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm if you are allergic to opioids or any ingredients of Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm. Inform your doctor if you have respiratory disorders, heart diseases, high blood pressure, and liver or kidney disease or hypothyroidism (underactive thyroid). Do not use Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm for a prolonged time, Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm contains fentanyl that may lead to mental or physical dependence on Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm. Do not take Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm if you are pregnant or breastfeeding, as it may cause adverse effects on the baby. Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm is not recommended for children below 18 years of age. Do not use this medicine if you have used an MAO inhibitor in the past 14 days, as a dangerous drug interaction could occur. Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm should be taken with extreme caution in patients who have a history of alcoholism or drug abuse. Avoid consuming alcohol while on this medication, as it can lead to excessive sleepiness. Blood pressure and cardiovascular (heart) status should be monitored closely during the treatment with Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm, especially in people affected with high blood pressure and a history of heart failure.

Drug-Drug Interactions

FentanylSafinamide

Critical

FentanylMifepristone

Critical

Drug-Drug Interactions

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FentanylSafinamide

Critical

How does the drug interact with Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm:
Taking Safinamide with Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm can increase the risk of serotonin syndrome (a condition in which a chemical called serotonin increase in your body).

How to manage the interaction:
Taking Safinamide with Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm is not recommended as it can result in an interaction, but it can be taken together if prescribed by a doctor. However, consult a doctor if you experience confusion, hallucination(seeing and hearing things that do not exist), increased heart rate, fever, excessive sweating, muscle pain, stomach cramps, vomiting, and loose stools. Do not discontinue any medications without consulting your doctor.

FentanylMifepristone

Critical

How does the drug interact with Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm:
Taking Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm and mifepristone may significantly increase the blood levels of Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm, which may increase the risk of side effects.

How to manage the interaction:
Although there is an interaction between mifepristone and Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm, they can be taken together if advised by a doctor. Do not stop using any medications without talking to your doctor.

FentanylLinezolid

Critical

How does the drug interact with Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm:
Taking Linezolid with Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm may increase the risk of serotonin syndrome(a condition in which a chemical called serotonin increase in your body).

How to manage the interaction:
Although there is an interaction between Linezolid and Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm, they can be taken together if prescribed by a doctor. However, consult a doctor if you experience confusion, fever, excessive sweating, muscle pain, stomach cramps, vomiting, and diarrhoea. Do not discontinue any medications without consulting your doctor.

FentanylErythromycin

Severe

How does the drug interact with Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm:
Coadministration of erythromycin and Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm increases blood levels and the effects of Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm.

How to manage the interaction:
Although taking erythromycin and Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm together can result in an interaction, they can be taken together if prescribed by a doctor. However, contact your doctor immediately if you experience sleepiness or difficulty breathing. Do not stop taking any medications without consulting a doctor.

FentanylDoxepin

Severe

How does the drug interact with Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm:
Taking Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm with Doxepin can cause serotonin syndrome (A condition in which a chemical called serotonin builds up in your body) due to the additive effect.

How to manage the interaction:
Although taking Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm with Doxepin can result in an interaction, they can be taken together if prescribed by your doctor. However, contact a doctor immediately if you experience elevated heart rate, fever, sweating, muscle spasms, stomach cramps, vomiting, and diarrhoea. Do not stop using any medications without consulting a doctor.

FentanylHaloperidol

Severe

How does the drug interact with Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm:
Coadministration of Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm with Haloperidol might raise serotonin hormone levels in the body, affecting the brain and nerve cells. Increased serotonin hormone can develop side effects.

How to manage the interaction:
Although taking Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm together with Haloperidol can result in an interaction, they can be taken together if prescribed by a doctor. However, consult a doctor if you experience confusion, fever, excessive sweating, muscle pain or stiffness, stomach cramps, nausea, vomiting, and diarrhea. Do not discontinue any medications without consulting your doctor.

FentanylVerapamil

Severe

How does the drug interact with Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm:
Coadministration of Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm with verapamil may significantly increase the blood levels and effects of Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm.

How to manage the interaction:
Although taking Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm together with Verapamil can result in an interaction, they can be taken together if prescribed by a doctor. However, consult a doctor if you experience dizziness, confusion, excessive sleepiness, or difficulty breathing. Do not stop taking any medication without consulting a doctor.

FentanylRemifentanil

Severe

How does the drug interact with Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm:
Combining Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm with Remifentanil can increase the risk of side effects.

How to manage the interaction:
Taking Remifentanil with Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm together can result in an interaction, but it can be taken if your doctor has advised it. Do not stop using any medications without talking to your doctor.

FentanylTapentadol

Severe

How does the drug interact with Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm:
Coadministration of Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm with tapentadol can increase the risk of side effects such as breathing problems.

How to manage the interaction:
Although taking Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm with Tapentadol can result in an interaction, they can be taken together if prescribed by your doctor. Do not stop using any medications without first talking to your doctor.

FentanylOlanzapine

Severe

How does the drug interact with Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm:
Taking olanzapine with Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm can increase the risk of side effects.

How to manage the interaction:
Although there is an interaction between olanzapine and Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm, they can be taken together if prescribed by a doctor. However, consult a doctor if you experience sleepiness, difficulty concentrating, and impaired judgment. Do not discontinue any medications without consulting a doctor.

Drug-Food Interactions

No Drug - Food interactions found in our database. Some may be unknown. Consult your doctor for what to avoid during medication.

Drug-Food Interactions

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Diet & Lifestyle Advise

Do not go for heavy exercise as it may increase your joint pain in arthritis. Instead, you can do stretching and low-impact aerobic exercises like walking on a treadmill, bike riding, and swimming. You can also strengthen your muscles by lifting light weights.
In the chronic condition of arthritis or joint pain, including fish like salmon, trout, tuna, and sardines. These fishes are enriched with omega-3 fatty acids that have a minimum level of chemicals called cytokines, which ramp up inflammation.
Your sitting posture is important, especially when you have pain and inflammation. Try to sit as little as possible, and only for a short duration of time. Long-term immobility is harmful in conditions like arthritis. Use back support like a rolled-up towel to minimise pain at the back of your spine curve. Keep your knees and hips at a right angle. Besides this, you can also use a footrest if required.
Include a diet rich in whole grains, vegetables, and fruits. This is a healthier option than eating many simple carbohydrates in processed foods.

Side Effects of Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm

Nausea and vomiting
Muscle stiffness (which may involve your chest muscles)
Agitation
Drowsiness
Dizziness
Problems with vision
Pain in your veins
Difficulty with body movements
Skin rash
Confusion after the operation

Habit Forming

No

Therapeutic Class

NARCOTIC (OPIOID) ANALGESIC

Author Details

Written By

Lakshmithulasi Yarragunta

Pharm-D (PB)

Reviewed By

Dr Aneela Siddabathuni

MPharma., PhD

Last Updated

Jul 8, 2025 | 9:47 AM IST

We provide you with authentic, trustworthy and relevant information

Drug-Diseases Interactions

No Drug - Disease interactions found in our database. Some may be unknown. Consult your doctor for what to avoid during medication.

Drug-Diseases Interactions

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FAQs

How does Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm work?

Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm contains Fentanyl which works by blocking a chemical messenger in the brain responsible for causing pain. Hence, changing the way the brain and nervous system respond to pain.

Can use of Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm cause breathing problem?

Yes, Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm occasionally could cause you to breathe more slowly than normal or might make you feel out of breath. If you do, please call your doctor right away. Additionally, before using Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm, patients with any respiratory issues should let their doctor know.

Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm is a habit-forming drug, so will I get addicted to it?

Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm is a habit-forming drug. It is not likely to be addictive if you take it for 2-4 weeks. However, if the doctor has prescribed you for more than 2-4 weeks, your doctor may reduce your dose before completely stopping it.

Is Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm safe for the elderly?

Elderly patients (aged more than 65 years) are more likely to have confusion and sleepiness or age-related health issues, which may require caution and an adjustment in the dose for patients receiving Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm. So, it is better to consult a doctor before taking this medicine.

Drug-Drug Interactions Checker List

CETIRIZINE
PHENYLEPHRINE
RITONAVIR
FLUCONAZOLE
VORICONAZOLE
CITALOPRAM
PAROXETINE
ESCITALOPRAM

Special Advise

Regular monitoring of blood pressure and heart rate is required while taking Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm.
Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm causes drowsiness. Avoid doing activities that require complete focus and attention.
An abrupt stoppage of Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm can lead to significant withdrawal symptoms. Always discuss with your doctor about decreasing the dosage before completely stopping its usage.
Avoid consuming alcohol while on this medication, as it can lead to dangerous side effects.
Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm is unsafe for usage if you're pregnant or are planning to get pregnant. Discuss with your doctor in such situations about changing/replacing the medicine with safer alternatives.
To avoid getting addicted to this drug, use it only in prescribed quantities and as directed by your doctor. Do not self-medicate.
Fenspar 50 mcg/Hr Transdermal Patch 45X45Mm should not be administered during labour as it may affect the baby’s breathing.

Disease/Condition Glossary

Pain: It can be short-term (acute) or long-term (chronic) in nature. Acute pain is, for a short time, caused by damage to the tissues of the muscle, bone, or organs. Chronic pain lasts for a longer duration and is caused due to pathologies like nerve damage, osteoarthritis, and dental pain due to damage to the tooth nerve, infection, decay, extraction, or injury. Many women have painful periods known as dysmenorrhea, most often menstrual cramps. On the other hand, Osteoarthritis is a degenerative disease that results in chronic pain in joints (especially knee) and stiffness, making daily tasks difficult.