Tantum lozenges are a topical treatment for sore throat and mouth irritation.

What Are They and How Do They Work?

• The active ingredient is benzydamine hydrochloride, 3 mg per lozenge (equivalent to ~2.68 mg benzydamine) .

• It belongs to a unique class of locally acting non-steroidal anti-inflammatory drugs (NSAIDs), providing anti‑inflammatory, analgesic, and mild anesthetic relief to the throat and mouth with minimal systemic effects .

Uses & Effectiveness

• Indicated for symptomatic relief of sore throat, tonsillitis, mouth ulcers, and throat irritation in adults and children aged 6 and above .

• Studies show symptom relief can begin within ~2 minutes after a single lozenge, lasting up to ~4 hours .

Dosage and Administration

• Adults and Children ≥ 6 years: dissolve slowly 1 lozenge in your mouth 3 times daily, every ~8 hours. Maximum of 3 lozenges per day .

• Some guidelines allow up to 12 lozenges/ day (every 1–2 hours) as needed, but official NHS and UK recommendations cap at 3 lozenges daily. If dosing every 1–2 hours, manufacturers advise not exceeding 12 per day—the more conservative upper limit is found in some product literature, but to stay safe follow local guidance or pharmacist instructions .

• Treatment duration: maximum 7 days, unless directed otherwise by a healthcare professional .

Safety, Contraindications & Side Effects

• Do not use if allergic to benzydamine or NSAIDs (e.g., ibuprofen), or if you have phenylketonuria (contains aspartame) or sugar intolerance (contains isomalt) .

• Exercise caution if you have asthma, as NSAIDs can trigger bronchospasm in sensitive individuals .

• Side effects, though rare, include:

  • Mouth irritation or burning

  • Dry mouth

  • Transient numbness

  • Photosensitivity, rash, or swelling in rare cases

  • Allergic reactions or bronchospasm very rarely