Flublock Nasal Spray
Written By Dr. Anuj Saini, MMST, MBBS
Reviewed By Dr. Ashish Ranjan, MD (Pharmacology), MBBS
Last updated on 12 Nov 2024 | 01:08 AM (IST)
Flublock Nasal Spray is a steroid. It relieves the symptoms of allergic rhinitis such as runny nose, sneezing and sinus discomfort. It works by blocking the production of certain chemical messengers that cause inflammation (swelling) and allergies, thus relieving the discomfort and irritation in your nose.
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General Information
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Product introduction
You should always use it as advised by your doctor but to get the full benefit you should take it regularly. It may take a few days for the spray to take full effect. If you do not see an improvement in your symptoms after a week you should talk to your doctor.
The most common side effects of Flublock Nasal Spray include nasal discomforts such as burning or itching. It can also cause nosebleeds, nasal inflammation, and headaches in some patients. Talk to your doctor if you are worried about side effects or they do not go away. This medicine may lower the ability of your body to fight off infections, so try to stay away from someone having chickenpox, measles, or tuberculosis. In general, you should try to avoid situations which make your symptoms worse (things like pollen and dust mites), and it would be best to avoid smoking.
Before starting to use this medicine you should let your doctor know if you are pregnant or breastfeeding, discuss the risks and benefits with your healthcare team. If you use this medicine for a long time, your doctor may want to carry out certain medical tests during the duration of treatment to check your progress.
The most common side effects of Flublock Nasal Spray include nasal discomforts such as burning or itching. It can also cause nosebleeds, nasal inflammation, and headaches in some patients. Talk to your doctor if you are worried about side effects or they do not go away. This medicine may lower the ability of your body to fight off infections, so try to stay away from someone having chickenpox, measles, or tuberculosis. In general, you should try to avoid situations which make your symptoms worse (things like pollen and dust mites), and it would be best to avoid smoking.
Before starting to use this medicine you should let your doctor know if you are pregnant or breastfeeding, discuss the risks and benefits with your healthcare team. If you use this medicine for a long time, your doctor may want to carry out certain medical tests during the duration of treatment to check your progress.
Uses of Flublock Nasal Spray
- Treatment of Sneezing and runny nose due to allergies
Benefits of Flublock Nasal Spray
Treatment of Sneezing and runny nose due to allergies
Flublock Nasal Spray provides relief from symptoms such as blocked or runny nose, sneezing and itchy or watery eyes. This will make it easier for you to go about your daily activities. It rarely has any serious side effects and you may only need to use it on days you have symptoms. Moreover, Flublock Nasal Spray may make you feel less sleepy as compared to other antihistamine medicines. If you are using it to prevent getting symptoms you should use it regularly to get the most benefit.
Flublock Nasal Spray provides relief from symptoms such as blocked or runny nose, sneezing and itchy or watery eyes. This will make it easier for you to go about your daily activities. It rarely has any serious side effects and you may only need to use it on days you have symptoms. Moreover, Flublock Nasal Spray may make you feel less sleepy as compared to other antihistamine medicines. If you are using it to prevent getting symptoms you should use it regularly to get the most benefit.
Side effects of Flublock Nasal Spray
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 Flublock
- Nasal inflammation
- Headache
- Nosebleeds
- Nasal ulceration
- Breathlessness
How to use Flublock Nasal Spray
Use this medicine in the dose and duration as advised by your doctor. Check the label for directions before use. Insert the bottle tip into one nostril and close the other nostril. Direct the spray towards the sides of your nostril, away from the cartilage dividing the two sides of your nose. As you spray, breath gently and keep the head upright. Repeat the same process for the other nostrils.
How Flublock Nasal Spray works
Flublock Nasal Spray is a steroid which works by blocking the production of certain chemical messengers in the body that cause inflammation (redness and swelling) and allergies.
All substitutes for Flublock Nasal Spray
For information purposes only. Consult a doctor before taking any medicine.
Furamist Nasal Spray
by Cipla Ltd
₹425.06/nasal spray
3% cheaper
Nazobic Nasal Spray
by Alembic Pharmaceuticals Ltd
₹416.9/nasal spray
5% cheaper
Allegra Nasal Spray
by Sanofi India Ltd
₹328.89/nasal spray
25% cheaper
Xyzal Nasal Spray
by Dr Reddy's Laboratories Ltd
₹428/nasal spray
2% cheaper
Ryno Nasal Spray
by Lincoln Pharmaceuticals Ltd
₹369/nasal spray
16% cheaper
Quick tips
- The right way to use the nasal spray:
- Shake the bottle before using the medicine.Â
- Clean your nose thoroughly before using the medicine.
- Insert the bottle tip into one nostril and close the other nostril.Â
- Direct the spray towards the sides of your nostril, away from the cartilage dividing the two sides of your nose.Â
- Breathe out gently through your mouth and repeat the same process for the other nostril.
- Avoid deep breathing as it will cause medication to go back to the throat and make it less effective.
- Do not share the bottle with anyone else so that you do not spread germs.
- Flublock Nasal Spray should be avoided in patients with recent nasal ulcers, nasal surgery, or nasal trauma.
Safety advice

Alcohol
No interaction found/established

Pregnancy
CONSULT YOUR DOCTOR
Flublock Nasal Spray 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
SAFE IF PRESCRIBED
Flublock Nasal Spray is probably safe to use during breastfeeding. Limited human data suggests that the drug does not represent any significant risk to the baby.
Use of Flublock Nasal Spray in breastfeeding mothers should only be considered if the expected benefit to the mother is greater than any possible risk to the baby.
Use of Flublock Nasal Spray in breastfeeding mothers should only be considered if the expected benefit to the mother is greater than any possible risk to the baby.

Driving
No interaction found/established

Kidney
No interaction found/established

Liver
No interaction found/established
Frequently asked questions
Flublock Nasal Spray is a corticosteroid, which works by decreasing the inflammation caused by allergies. It reduces inflammation by blocking the release of certain natural substances that cause allergic symptoms such as swelling, redness and pain.
In very rare cases, Flublock Nasal Spray can cause serious allergic reactions such as rash, hives, breathing difficulty, swelling of the face, throat, and tongue. It may also cause low blood pressure which may further cause lightheadedness and the patient may even faint. You should immediately contact your doctor if you experience any of these symptoms as it could be life threatening.
Flublock Nasal Spray being a corticosteroid weakens the immune system of the body. It could have because of this that your brother developed chickenpox. You should immediately stop the medication and contact the doctor. The doctor may consider treating it with antiviral agents.
It is recommended that you take the nasal spray as long as you are exposed to the allergen. Consult your doctor if you have any concerns.
Usual doses of Flublock Nasal Spray can be tolerated by most people for long periods of time. But, few people may develop nose bleed, hole in nasal cartilage, and visual disturbances due to cataract or glaucoma if they take Flublock Nasal Spray for a long time. Moreover, high doses also tend to increase the risk of weakening of bones (osteoporosis) and diabetes.
Thrush is a fungal infection of the nose and throat caused by candida. Flublock Nasal Spray can cause thrush as a common side effect. To avoid getting fungal infections, you should thoroughly rinse your mouth after using a nasal spray. If you experience any redness or white colored patches in your nose or mouth, inform your doctor.
No, Flublock Nasal Spray is only meant for allergic rhinitis and should not be taken for common cold. Symptoms of common cold can be due to viral infection and this medicine does not cure such infections. Therefore, you may not benefit from Flublock Nasal Spray.
Fact Box
Chemical Class
Glucocorticoids
Habit Forming
No
Therapeutic Class
RESPIRATORY
Action Class
Glucocorticoids
References
- 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. 576-77.
- Boushey HA. Drugs Used in Asthma. 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. 348.
- Fluticasone Furoate. Dublin 24, Ireland: GlaxoSmithKline (Ireland) Limited; 2008 [revised 6 Dec. 2018]. [Accessed 04 Apr. 2019] (online) Available from:
- ScienceDirect. Fluticasone Furoate. [Accessed 04 Apr. 2019] (online) Available from:
- Central Drugs Standard Control Organisation (CDSCO). [Accessed 03 Apr. 2019] (online) Available from:
- Ciplamed. Fluticasone furoate [Prescribing Information]. [Last Revised: 04/10/2021]. [Accessed 26 June 2023] (online) Available from:

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Address: Glenmark Pharmaceuticals Limited, B/2, Mahalaxmi Chambers, 22, Bhulabhai Desai Road, Mumbai – 400 026.
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