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Introduction About B SYS TABLET
B SYS TABLET is used to relieve the symptoms of hay fever (such as sneezing, itching, a runny and stuffy nose, and red or watery eyes) and other forms of allergic rhinitis. It is also used to manage itchy skin rashes (hives, or urticaria).
B SYS TABLET contains Bilastine, which belongs to the group of medicines called Antihistamines. It works by stopping the binding of histamine (a chemical that is produced by the immune system) to its receptor in the body, and in severe cases, it inhibits the initiation of an allergic reaction.
B SYS TABLET is not recommended for use in patients with a history of irregular heartbeats. Before taking B SYS TABLET, inform your doctor if you have moderate or severe renal impairment or a personal or family history of heart problems.
B SYS TABLET should not be used during pregnancy as a precautionary measure, and it should be used with caution in breast-feeding women. Consult your doctor before taking this medicine.
B SYS TABLET is not recommended for use in children (less than 12 years of age). The most common side effects of taking B SYS TABLET are headache, drowsiness, nasal irritation, and stomach pain. Consult your doctor if any of the side effects worsen.
Uses Of B SYS TABLET
It is used to:
- Relieve symptoms of hay fever (such as sneezing, itching, a runny and stuffy nose, and red or watery eyes) and other forms of allergic reactions
- Manage itchy skin rashes (hives or urticaria).
How B SYS TABLET Works
B SYS TABLET works by stopping the binding of histamine (a chemical that is produced by the immune system) to its receptor in the body, and in severe cases, it inhibits the initiation of an allergic reaction.
How to use B SYS TABLET
Take B SYS TABLET as advised by your doctor. Swallow the medicine with enough water. Do not crush or chew the medicine. Try to take B SYS TABLET daily at the same time in the evening. Your doctor will decide the correct dose and duration of B SYS TABLET for you depending upon your age, body weight, and disease condition.
Overdose
If you or anyone else accidentally takes too much of B SYS TABLET, consult your doctor immediately or visit the nearby hospital. Symptoms of an overdose may include dizziness, headaches, and nausea.
Side Effects Of B SYS TABLET
Common side effects of B SYS TABLET:
- Headache
- Drowsiness
- Rhinitis (nasal irritation)
- Allergic conjunctivitis (eye irritation)
- Stomach pain (abdominal or upper abdominal pain)
Stop taking B SYS TABLET and contact your physician immediately if you experience any of the following side effects:
- Allergic reaction (signs include difficulty breathing, dizziness, collapsing or losing consciousness, swelling of the face, lips, tongue, or throat, and/or swelling and redness of the skin)
- Heart problems (signs include heart racing or slowing, cold, sweats, feeling faint, feeling the heartbeat, lightheadedness, nausea, and shortness of breath)
How To Manage Side Effects
Stomach Pain
Avoid spicy or fatty foods, caffeine, or alcohol that may exacerbate symptoms. Eat a bland diet consisting of easily digestible foods like rice, bananas, applesauce, and toast. Applying a heating pad or taking a warm bath can also help soothe abdominal muscles and alleviate discomfort. Drink plenty of fluids to stay hydrated but avoid excessive consumption to prevent further irritation. If stomach pain persists, consult your doctor.
Warning & Precautions
Pregnancy
ContraindicatedB SYS TABLET should not be used during pregnancy as a precautionary measure. Consult your doctor before taking it.
Breastfeeding
Use with CautionB SYS TABLET should be used with caution in breastfeeding women. Consult your doctor before taking it.
Driving and Using Machines
Use with CautionB SYS TABLET does not affect the driving performance of adults. Consult your doctor if you feel any side effects during management with B SYS TABLET that may stop you from driving or using machines.
Alcohol
Consult your doctorB SYS TABLET does not increase the drowsiness produced by alcohol. Consult your doctor before taking it.
Kidney
Use with CautionB SYS TABLET should be used with caution in patients suffering from moderate to severe kidney impairment. Consult your doctor before taking it.
Allergy
ContraindicatedDo not take B SYS TABLET if you are allergic to bilastine or any of the other ingredients in this medicine.
Heart Disease
Consult your doctorB SYS TABLET is not recommended for use in patients with a history of irregular heartbeat, and it should be used with caution in patients suffering from heart problems or a family history of heart problems. Consult your doctor before taking it.
Use In Pediatrics
ContraindicatedB SYS TABLET is not recommended for use in children (less than 12 years of age). Consult your child’s doctor for advice.
Use In Geriatrics
Consult your doctorB SYS TABLET can be used in elderly patients without any dose adjustments. Consult your doctor before taking it.
Drug - Drug interaction
- Antifungal (Ex. ketoconazole)
- Antibacterials (Ex. erythromycin, rifampicin)
- Anti-anginal (Ex. diltiazem)
- Immunosuppressant (Ex. cyclosporine)
- Anti-retroviral (Ex. ritonavir)
Drug - Food interaction
Avoid taking B SYS TABLET with food or with grapefruit juice or other fruit juices, as this will decrease the effect of this medicine.
Synopsis
|
Drug |
Bilastine |
|
Pharmacological Category |
Antihistamine |
|
Therapeutic Indication |
Seasonal Allergic Rhinitis, Chronic Spontaneous Urticaria |
|
Dosage Forms |
Tablet, Dispersible tablet, Oral Solution, Syrup |
More Information
Storage
- Keep B SYS TABLET out of reach of children
- Store at room temperature
FAQs About B SYS TABLET
Q: What is B SYS TABLET used for?
A: B SYS TABLET is used to relieve the symptoms of hay fever (such as sneezing, itchy, runny, blocked-up nose, and red and watery eyes) and other forms of allergic rhinitis, which is usually caused by an allergen such as pollen, dust, mold, or flakes of skin from certain animals. It is also used to manage itchy skin rashes (hives, or urticaria).
Q: Can B SYS TABLET be used in pregnant women?
A: B SYS TABLET should not be used during pregnancy as a precautionary measure. Consult your doctor for advice before taking B SYS TABLET if you are pregnant or planning to get pregnant.
Q: Is B SYS TABLET safe to use in patients with kidney impairment?
A: B SYS TABLET should be used with caution in patients suffering from moderate to severe kidney impairment. Your doctor may regularly monitor your kidney function tests during the management of this medicine. Consult your doctor before taking B SYS TABLET.
Q: What are the common side effects of B SYS TABLET?
A: The most common side effects of taking B SYS TABLET are headache, drowsiness, nasal rhinitis (nasal irritation), allergic conjunctivitis (eye irritation), and stomach pain. Consult your doctor if any of the side effects worsen.
Q: Can I drive or operate any machines after taking B SYS TABLET?
A: B SYS TABLET does not affect the driving performance of adults. Consult your doctor if you feel any side effects during management with B SYS TABLET that may stop you from driving or using machines.
Q: Can I use B SYS TABLET with children?
A: B SYS TABLET is not recommended for use in children (less than 12 years of age). Consult your child’s doctor for advice.
Q: What should I avoid while taking B SYS TABLET?
A: Avoid taking B SYS TABLET with food or with grapefruit juice or other fruit juices, as this will decrease the effect of this medicine.
Q: What is the best time to take B SYS TABLET?
A: Take B SYS TABLET on an empty stomach (at least one hour before meals or two hours after meals) or as directed by the doctor.
Q: Is B SYS TABLET safe for kidneys?
A: B SYS TABLET should be used with caution in patients suffering from moderate to severe kidney impairment. Consult your doctor before taking it.
Q: Does B SYS TABLET make you drowsy?
A: B SYS TABLET makes drowsiness a common side effect. Ensure proper hydration, as dehydration can cause dizziness. Avoid excessive caffeine, alcohol, and high-sodium foods, which can exacerbate symptoms. Engage in physical therapy or vestibular rehabilitation exercises designed to improve balance and reduce dizziness or drowsiness. Move slowly when changing positions, such as standing up or lying down, to avoid triggering dizziness. Practice relaxation techniques such as deep breathing, meditation, or yoga to manage stress, which can contribute to dizziness. Consult your doctor if drowsiness persists.
Q: Can B SYS TABLET be used for cold?
A: B SYS TABLET is not used to manage colds caused by viruses. It is used to relieve the symptoms of hay fever (such as sneezing, itching, a runny and stuffy nose, and red or watery eyes) and other forms of allergic rhinitis. It is also used to manage itchy skin rashes (hives, or urticaria). Consult your doctor for advice.
References
1. Dan L. Longo, Anthony S. Fauci, Dennis L. Kasper, Stephen L. Hauser, J. Larry Jameson, and Joseph Loscalzo. Allergy, Clinical Immunology, and Rheumatology. Harrison’s Manual of Medicine. 18th edition. Page- 1064.
2. Aranjit Singh Randhawa, Norhayati Mohd Noor, Mohd Khairi Md Daud, and Baharudin Abdullah. Efficacy and Safety of Bilastine in the Treatment of Allergic Rhinitis: A Systematic Review and Meta-Analysis. Frontiers in Pharmacology. January 2022 [Accessed on 12th August 2026] Click here
3. Martin K., Marysia Tiongco-Recto, Erminia Ridolo, and Zoltan Novak. Bilastine: a lifetime companion for the treatment of allergies. Journal of Current Medical Research Opinion. October 2019. [Accessed on 12th August 2026] Click here
4. Menarini Manufacturing Logistics and Services S.r.l. Electronic Medicines Compendium (EMC). [Revised in December 2020] [Accessed on 12th August 2026] Click here
5. Aralez Pharmaceuticals Trading (DAC). Blexten (Bilastine 20 mg tablet). [Revised in July 2018] [Accessed on 12th August 2026] Click here
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