Informational only — Not medical advice. Always consult a licensed healthcare provider.

Community data Updated 2 months ago

Indications & Uses

Benostar Mouthwash is indicated for:

Pharmacology

Benzydamine Hydrochloride mouthwash is a Non-Steroidal Anti-Inflammatory Drug (NSAID) that also has pain-relieving and local anesthetic properties. Its clinical pharmacology is well known. Benzydamine is poorly absorbed into the blood, so when it is applied topically the body is exposed to very little of the drug, yet the concentration stays high at the site of injury in the mouth or throat. That's why it gives excellent pain relief in the oropharynx with minimal side effects.

Benzydamine is an NSAID, but its mechanism of action is different from that of conventional NSAIDs. Benzydamine mouthwash relieves pain and inflammation by inhibiting pro-inflammatory cytokines and reducing vascular permeability. It also has a local anesthetic property, which acts on pain immediately.

Dosage Reference

Reference Information Only

Dosages shown are general references from official sources. Always consult your doctor or pharmacist for personalized dosing.

Adults:

Rinse or gargle 15 ml of Benzydamine mouthwash for 20 to 30 seconds. You can repeat this every 1.5 to 3 hours, or as required. If it stings, mix it with an equal volume of water to dilute it.

Pediatric use: Benzydamine mouthwash is not indicated below 12 years of age.

Side Effects

Benzydamine Hydrochloride mouthwash can cause side effects, though not everybody gets them. They are generally minor. A severe allergic reaction can happen. It may include a red and lumpy skin rash, difficulty breathing, swelling of the face, mouth, lips or eyelids, unexplained high temperature (fever) and feeling faint. If the swelling reaches the throat and makes breathing and swallowing difficult, the patient should be hospitalized. Other side effects are an itchy rash, sometimes with pale, raised areas of skin with red edges (urticaria), and a feeling of numbness in the mouth. You may also get a stinging feeling in the mouth. If that happens, you can dilute the mouthwash with water, which should help to reduce the stinging.

Cautions & Contraindications

Contraindications

Don't use Benzydamine Hydrochloride if you are allergic (hypersensitive) to benzydamine or to any other component of the mouthwash. Keep it away from the eyes. If it gets into the eyes by accident, wash them straight away with cold water.

Pregnancy & Breastfeeding

It hasn't been established whether Benzydamine is safe for use in pregnant patients. If a doctor is considering it for a pregnant patient, the risk and the benefit should be weighed first.

⚠️ Talk to your doctor before taking any medicine during pregnancy or while breastfeeding.

Storage

Store Benzydamine Hydrochloride in a cool, dry place below 30ºC and keep it away from light. Keep it out of reach of children.

Common questions about Benostar Mouthwash 150 mg

What is Benostar Mouthwash 150 mg Mouth Wash?

Benostar Mouthwash 150 mg Mouth Wash is a medicine that contains Benzydamine Hydrochloride. It is made by Square Pharmaceuticals PLC, Pabna. It belongs to the Topical anti-inflammatory preparations group of medicines.

What is Benostar Mouthwash used for?

Benostar Mouthwash is used for: Pharyngitis, Pain.

What are the side effects of Benostar Mouthwash?

Benzydamine Hydrochloride mouthwash can cause side effects, though not everybody gets them. They are generally minor.

Can I take Benostar Mouthwash during pregnancy or while breastfeeding?

It hasn't been established whether Benzydamine is safe for use in pregnant patients. If a doctor is considering it for a pregnant patient, the risk and the benefit should be weighed first. Talk to your doctor before taking any medicine during pregnancy or while breastfeeding.

How should I store Benostar Mouthwash?

Store Benzydamine Hydrochloride in a cool, dry place below 30ºC and keep it away from light. Keep it out of reach of children.

Do I need a prescription for Benostar Mouthwash?

Benostar Mouthwash is a prescription (Rx) medicine. Take it as your doctor advises.

Last updated: 15 Aug 2026