Patient Medication Information: uses, side effects, how to take - PMS-Bilastine
What is pms-BILASTINE used for?
pms-BILASTINE tablets are used to relieve the symptoms of:
- Seasonal Allergic Rhinitis: Hayfever (sneezing, itchy, runny, blocked-up nose, red and watery eyes) in patients 12 years of age and older.
- Chronic Spontaneous Urticaria: Hives and itching in patients 12 years of age and older.
How does pms-BILASTINE work?
pms-BILASTINE is an antihistamine - it blocks the action of histamine and relieves hayfever symptoms, itchiness and hives.
What are the ingredients in pms-BILASTINE?
Medicinal ingredient: bilastine
Non-medicinal ingredients: colloidal anhydrous silica, magnesium aluminometasilicate, magnesium stearate, mannitol, microcrystalline cellulose and sodium starch glycolate.
pms-BILASTINE comes in the following dosage forms:
Tablets: 20 mg
Do not use pms-BILASTINE if:
- You are allergic (hypersensitive) to bilastine or any of the other ingredients of pms-BILASTINE.
- You have a history of irregular heartbeat.
To help avoid side effects and ensure proper use, talk to your healthcare professional before you take pms-BILASTINE. Talk about any health conditions or problems you may have, including if you:
- have kidney problems.
- have heart problems or a family history of heart problems.
are pregnant or planning to becoming pregnant.
- are breastfeeding.
Other warnings you should know about:
Driving and using machines
While taking pms-BILASTINE you may experience a feeling of tiredness, which can affect your ability to drive or use machines. If you experience tiredness, do not drive or operate machinery.
pms-BILASTINE tablets (20 mg) are not suitable for use by children under 12 years of age.
Tell your healthcare professional about all the medicines you take, including any drugs, vitamins, minerals, natural supplements or alternative medicines.
The following may interact with pms-BILASTINE:
- ketoconazole (used to treat fungal infections)
- erythromycin and rifampicin (used to treat bacterial infections)
- diltiazem (used to treat heart problems)
- cyclosporine (used to supress the immune system)
- ritonavir (used to treat HIV/AIDS)
- grapefruit and other fruit juices
How to take pms-BILASTINE:
- Swallow the tablet with water.
Take pms-BILASTINE on an empty stomach, one hour before eating or drinking or two hours after. Food and fruit juice will lower the amount of medicine available to treat your symptoms.
- Do not take more pms-BILASTINE than your healthcare professional has told you to. If your symptoms do not improve, consult your healthcare professional.
Usual dose:
Seasonal Allergic Rhinitis
Patients 12 years of age and older: 1 tablet (20 mg) once daily.
Chronic Spontaneous Urticaria
Patients 12 years and older: 1 tablet (20 mg) once daily.
Overdose:
Missed Dose:
If you forget to take your dose on time, take it as soon as possible, and then go back to your regular dosing schedule. Do not take a double dose to make up for a forgotten dose.
What are possible side effects from using pms-BILASTINE?
If you think you, or a person you are caring for, have taken too much pms-BILASTINE, contact a healthcare professional, hospital emergency department, regional poison control centre or Health Canada’s toll-free number, 1-844-POISON-X (1-844-764-7669) immediately, even if there are no signs or symptoms.
These are not all the possible side effects you may have when taking pms-BILASTINE. If you experience any side effects not listed here, tell your healthcare professional.
- headache
- sleepiness
- dizziness
- stomach pain
pms-BILASTINE can cause abnormal blood test results. Your healthcare professional will decide when to perform blood tests and will interpret the results.
Serious side effects and what to do about them
| Symptom / effect | Talk to your healthcare professional | Stop taking drug and get immediate medical help | |
|---|---|---|---|
| Only if severe | In all cases | ||
| RARE | |||
Heart problems: heart racing or slowing, cold sweats, feeling faint, feeling your heart beat, light headed, nausea, shortness of breath | √ | ||
| UNKNOWN | |||
| Allergic reactions: difficulty in breathing, swelling of your face, lips, tongue or throat, and/or swelling and redness of the skin | √ | ||
If you have a troublesome symptom or side effect that is not listed here or becomes bad enough to interfere with your daily activities, tell your healthcare professional.
Storage:
Store between 15°C - 30°C.
Do not use pms-BILASTINE after the expiry date which is stated on the bottle and blister after EXP. The expiry date refers to the last day of that month.
Medicines should not be disposed of via wastewater or household waste. Ask your pharmacist how to dispose of medicines no longer required. These measures will help to protect the environment.
Keep out of reach and sight of children.
If you want more information about pms-BILASTINE:
- Talk to your healthcare professional
- Find the full product monograph that is prepared for healthcare professionals and includes the Patient Medication Information by visiting the Health Canada Drug Product Database website (https://www.canada.ca/en/health-canada/services/drugs-health-products/drug-products/drug-product-database.html); the manufacturer’s website www.pharmascience.com; or by calling 1-888-550-6060..
Last Revised: OCT 3, 2025
Reporting side effects
You can report any suspected side effects associated with the use of health products to Health Canada by:
- Visiting the Web page on Adverse Reaction Reporting (canada.ca/drug-device-reporting) for information on how to report online, by mail or by fax; or
- Calling toll-free at 1-866-234-2345.
NOTE: Contact your healthcare professional if you need information about how to manage your side effects. The Canada Vigilance Program does not provide medical advice.