Product Information

Registration Status: Active

BILAXTEN ORAL SOLUTION 2.5MG/ML is approved to be sold in Singapore with effective from 2020-06-24. It is marketed by A. MENARINI SINGAPORE PTE LTD, with the registration number of SIN15963P.

This product contains Bilastine 2.5MG/ML in the form of SOLUTION. It is approved for ORAL use.

This product is manufactured by BERLIN-CHEMIE AG in GERMANY.

It is a Prescription Only Medicine that can only be obtained from a doctor or a dentist, or a pharmacist with a prescription from a Singapore-registered doctor or dentist.



Bilastine is a novel new-generation antihistamine that is highly selective for the H1 histamine receptor, has a rapid onset and prolonged duration of action.


For symptomatic relief of nasal and non-nasal symptoms of seasonal rhinitis in patients 12 years of age and older and for symptomatic relief in chronic spontaneous urticaria in patients 18 years of age and older [FDA Label].

Mechanism of Action

Bilastine is a selective histamine H1 receptor antagonist (Ki = 64nM) [FDA Label]. During allergic response mast cells undergo degranulation which releases histamine and other subastances. By binding to and preventing activation of the H1 receptor, bilastine reduces the development of allergic symptoms due to the release of histamine from mast cells.


Bilastine has a Tmax of 1.13 h [FDA Label]. The absolute bioavailability is 61%. No accumulation observed with daily dosing of 20-100 mg after 14 days. Cmax decreased by 25 % and 33% when taken with a low fat and high fat meal compared to fasted state. Administration with grapefruit juice decreased Cmax by 30%.
Bilastine does not interact with the cytochrome P450 system and does not undergo significant metabolism in humans [FDA Label].


Bilastine has a total clearance is 9.20 L/h and a renal clearance of 8.7 L/h [FDA Label].


The most common adverse effects experienced during clinical trials were abdominal pain, dizziness, headache, and somnolence [FDA Label]. Bilastine is associated with Q/T prolongation. The no observed adverse effect level of bilastine is 1200 mg/kg/day in rats and 125 mg/kg/day in dogs [A19750].

Active Ingredient/Synonyms

Bilastine | Bilastine |

Source of information: Drugbank (External Link). Last updated on: 3rd July 18. *Trade Name used in the content below may not be the same as the HSA-registered product.


  1. Health Science Authority of Singapore - Reclassified POM
  2. Drugbank