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Selfex 120mg Tablet

Written By Dr. Anuj Saini, MMST, MBBS
Reviewed By Dr. Rajeev Sharma, MBA, MBBS
Last updated on 21 Apr 2026 | 01:05 PM (IST)
Selfex 120mg Tablet is an anti-allergy medicine. It is used to treat allergic rhinitis and chronic idiopathic urticaria. It relieves symptoms such as sneezing, runny nose, nasal congestion, itching, watery eyes, and hives. It works by blocking histamine, a substance that triggers allergic symptoms.
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General Information

Contains

Fexofenadine (120mg)

Marketer

Selexia Biotech Private Limited

Storage

Store below 30°C
The content is shown in English
Selfex 120mg Tablet image
Selfex 120mg Tablet image

Product introduction

Selfex 120mg Tablet is usually taken before a meal. The dose and duration are advised by your doctor. The dose depends on your condition and how you respond to treatment. Take it regularly as prescribed and continue for the duration recommended by your doctor. The most common side effects are headache, drowsiness, dizziness, and nausea. Most of these are temporary and usually resolve with time. Consult your doctor if any of these side effects persist or get worse. Your doctor may be able to help prevent or treat the symptoms. Do not self-medicate or share this medicine with others, even if symptoms appear similar. Inform your doctor if you have any kidney, liver, or heart problems. Pregnant and breastfeeding women should consult their doctor before taking this medicine.

Uses of Selfex Tablet

  • Treatment of Chronic Idiopathic Urticaria
  • Treatment of Allergic rhinitis

Benefits of Selfex Tablet

Treatment of Chronic Idiopathic Urticaria
Selfex 120mg Tablet helps reduce itching, redness, and raised skin welts (hives) associated with chronic idiopathic urticaria. When used regularly as prescribed, it helps control flare-ups, improves skin comfort, and reduces the impact of persistent hives on daily life.
Treatment of Allergic rhinitis
Selfex 120mg Tablet works by blocking histamine, a chemical that triggers allergic symptoms. This reduces irritation in the nose and eyes and relieves discomfort. When taken as prescribed, it helps control symptoms. As a result, patients may experience greater relief of allergic symptoms and improved quality of life.

Side effects of Selfex Tablet

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 Selfex
  • Headache
  • Drowsiness
  • Dizziness
  • Nausea

How to use Selfex Tablet

Take this medicine in the dose and duration as advised by your doctor. Swallow it as a whole. Do not chew, crush or break it. Selfex 120mg Tablet may be taken with or without food.

How Selfex Tablet works

Selfex 120mg Tablet belongs to a class of medicines called antihistamines. It blocks the effects of a chemical called histamine, which is responsible for causing inflammation and its associated symptoms, such as itching, redness, swelling, and irritation.

All substitutes for Selfex 120mg Tablet

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

etoFEX 120mg Tablet

by Leeford Healthcare Ltd
₹6.41/tablet
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Altiva 120mg Tablet

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<h3 class=bodySemiBold>Altiva 120mg Tablet</h3>

Allegra 120mg Tablet

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<h3 class=bodySemiBold>Allegra 120mg Tablet</h3>

Histafree 120 Tablet

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Quick tips

  • Avoid drinking fruit juices (such as grapefruit, apple, or orange juice), as they may affect the absorption of this medicine and reduce its effectiveness.
  • Avoid taking antacids within 30 minutes of taking this medicine. They can make it harder for your body to absorb it.
  • Never give this medicine to someone who appears to have a similar illness. It should be taken only if prescribed by a doctor.
  • Do not drink alcohol while taking this medication, as it may increase the risk of sleepiness. Although this medicine is less likely to reach the brain and generally causes minimal sedation, alcohol may enhance its effects.
  • Stop taking Selfex 120mg Tablet at least 3 days before undergoing an allergy test. This medicine can affect the test results.
  • If you have seasonal allergies, keep windows closed during high-pollen or high-wind periods. Take more care, especially in the early morning when pollen counts are typically highest.
  • Stop taking the medication and contact your doctor immediately if you notice a rapid heartbeat, an irregular pulse, or palpitations.

Safety advice

Alcohol

Alcohol

UNSAFE
Do not drink alcohol while you are taking this medicine. Selfex 120mg Tablet may cause excessive drowsiness when taken with alcohol.
Pregnancy

Pregnancy

CONSULT YOUR DOCTOR
The safety of Selfex 120mg Tablet 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

Breast feeding

CAUTION
Selfex 120mg Tablet should be used with caution during breastfeeding. Breastfeeding should be held until the treatment of the mother is completed and the drug is eliminated from the body.
Because of low milk levels and lack of sleepiness, use of Selfex 120mg Tablet would not be expected to cause any adverse effects in breastfed babies.
Driving

Driving

SAFE
Selfex 120mg Tablet does not usually affect your ability to drive.
However, you should check that Selfex 120mg Tablet does not make you feel sleepy or dizzy before driving or operating machinery.
Kidney

Kidney

CAUTION
Selfex 120mg Tablet should be used with caution in patients with kidney disease. Dose adjustment may be needed.
Liver

Liver

SAFE IF PRESCRIBED
Selfex 120mg Tablet is probably safe to use in patients with liver disease. Limited data suggest dose adjustment may not be needed.

Interaction with drugs

Taking Selfex with any of the following medicines can modify the effect of either of them and cause some undesirable side effects
Severe

Tepotinib (Oral Route)

Do not consume Tepotinib with Fexofenadine. If concurrent use is essential, please consult your doctor. Tepotinib may raise blood levels of Fexofenadine.
Moderate

Carbamazepine (Oral Route)

Your doctor may monitor the effects of Fexofenadine along with your overall treatment and adjust the doses as per the observations. Fexofenadine may increase the metabolism of Carbamazepine.
Moderate

Conivaptan (Injection Route)

Watch out for symptoms of Fexofenadine side effects such as headaches, excessive sleepiness, dry mouth, feeling sick or dizziness and consult your doctor if you experience them. They may adjust the doses as per the observations. Conivaptan may raise blood levels of Fexofenadine.
Moderate

Daclatasvir (Oral Route)

Watch out for symptoms of Fexofenadine side effects such as headaches, excessive sleepiness, dry mouth, feeling sick or dizziness and consult your doctor if you experience them. They may adjust the doses as per the observations. Daclatasvir may raise blood levels of Fexofenadine.
Moderate

Magaldrate (Oral Route)

Ensure a gap of at least 2 hours between taking Fexofenadine and Magaldrate.

Frequently asked questions

Selfex 120mg Tablet is an anti-allergic medicine. It contains fexofenadine (a second-generation antihistamine). It helps reduce allergy symptoms such as sneezing, a runny nose, itchy or watery eyes, itching, and skin rashes. It may help relieve symptoms triggered by dust allergy (including house dust mites). It is also effective in managing hives and urticaria by blocking histamine (a chemical released during allergic reactions).
It is important to inform your doctor about any existing medical conditions and medications. Also mention if you are pregnant, planning a pregnancy, or breastfeeding. Providing a complete list of prescription and non-prescription medicines to your doctor helps them identify possible interactions.
Selfex 120mg Tablet can be taken at any time of day, but taking it at the same time each day helps maintain a consistent level of medicine in your body. Some people prefer taking it in the morning for daytime allergy symptoms.
Yes, Selfex 120mg Tablet may interact with other medicines such as antacids, erythromycin, and ketoconazole. It is always better to consult your doctor and provide a list of all prescription and non-prescription medicines before taking Selfex 120mg Tablet. It is generally recommended to avoid fruit juices (such as grapefruit, orange, or apple juice) when taking it. They may reduce its absorption.
Take Selfex 120mg Tablet exactly as directed to help manage your allergy symptoms. This medicine relieves the signs of an allergic reaction. However, it does not treat the underlying cause. Therefore, you can stop it when your symptoms have improved. If your symptoms recur after stopping the medicine or persist despite treatment, contact your doctor for further evaluation.
No. It is not an antibiotic; it is an antihistamine. Antibiotics treat bacterial infections. Antihistamines like Selfex 120mg Tablet relieve allergy symptoms by blocking the effects of histamine in the body.
Selfex 120mg Tablet is generally well tolerated. Common side effects may include headache, back pain, dizziness, and stomach discomfort. These are usually mild and temporary. Heart palpitations have been reported rarely. If you experience unusual symptoms, such as severe dizziness or an irregular heartbeat, talk to your doctor.
Selfex 120mg Tablet is classified as a non-sedating (non-drowsy) antihistamine. It has a very limited ability to cross into the brain. It causes comparatively less sedation and drowsiness than cetirizine in some individuals. However, individual responses vary, and mild drowsiness can still occur in some people.

Fact Box

Chemical Class

Diphenylmethanes

Habit Forming

No

Therapeutic Class

RESPIRATORY

Action Class

Second-Generation H1 Antihistamines

References

  1. 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. 543-44.
  2. Chaves RG, Lamounier JA. Breastfeeding and maternal medications. J Pediatr (Rio J). 2004;80(5 Suppl):S189-S198. [Accessed 01 Apr. 2019] (online) Available from:
  3. Central Drugs Standard Control Organisation (CDSCO). [Accessed 01 Apr. 2019] (online) Available from:
  4. Fexofenadine hydrochloride [EMC SmPC]. Beverley, Hull: Dr. Reddy's Laboratories (UK) Ltd.; 2018. [Accessed 08 Oct. 2020]. (online) Available from:
  5. Drugs and Lactation Database (LactMed®) [Internet]. Bethesda (MD): National Institute of Child Health and Human Development; 2006. Fexofenadine. [Accessed 26 June 2023] (online) Available from:
  6. Fexofenadine Hydrochloride [Package Insert]. Salcete, Goa: Sanofi India Limited; 2020. [Accessed 26 June 2023] (online) Available from:
  7. National Health Services. Fexofenadine. [Last Reviewed: 14 Oct. 2021]. [Accessed 26 June 2023] (online) Available from:
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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: Selexia Biotech Private Limited
Address: HOUSE NO 307 SHOP NO PVT 2 KH NO 136/2 GROUND FLOOR BANJARA BASTI MAIN ROAD VILLAGE BADLI DELHI North Delhi DL 110042 IN

Vendor Details

Country of origin: India
A licensed vendor partner from your nearest location will deliver Selfex 120mg Tablet. Once the pharmacy accepts your order, the details of the pharmacy will be shared with you. Acceptance of your order is based on the validity of your doctor's â„ž and the availability of this medicine.

In case of any issues, contact us

Email ID: [email protected]
Phone Number: 0124-4166666
Address: 5th Floor Tower - B of the Presidency Building, 46/4 Mehrauli Gurgaon Road, Sector 14, Gurugram, Haryana-122001, India

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