Medica Keelspray Lemon (Chlorhexidine Gluconate, Lidocaine Hydrochloride Monohydrate)

Medica Keelspray Lemon combines an antiseptic and a local anaesthetic to manage oral mucosal conditions.

• Oral mucosal antisepsis: Reduces microbial load on the oral mucosa and helps prevent infection.
• Minor oral lesion pain relief: Provides temporary numbness to ease discomfort from aphthous ulcers, trauma or dental procedures.
• Pre‑ and post‑dental procedure care: Helps maintain a clean oral field and reduces procedural pain.

• Chlorhexidine gluconate disrupts bacterial cell membranes by binding to phospholipids, leading to leakage of intracellular contents and cell death. Lidocaine hydrochloride reversibly blocks voltage‑gated sodium channels in peripheral nerves, preventing depolarisation and producing a localized anaesthetic effect on the oral mucosa.

Adverse reactions may occur with any topical oral preparation.

Common Side Effects

• Altered taste sensation: transient metallic or bitter taste.
• Mild burning or stinging: brief discomfort at the application site.
• Transient numbness: temporary loss of sensation in the sprayed area.
• Oral irritation: redness or mild inflammation.
• Allergic contact dermatitis: localized skin reaction.
• Nausea: occasional mild upset stomach.

Serious or Rare Side Effects

• Anaphylaxis: severe, systemic allergic reaction requiring emergency care.
• Stevens‑Johnson syndrome: rare mucocutaneous blistering disorder.
• Severe oral ulceration: extensive tissue breakdown beyond intended use.
• Respiratory depression: unlikely but possible with excessive systemic absorption.
• Persistent numbness: prolonged loss of sensation beyond expected duration.
• Angioedema: swelling of lips, tongue or throat.

Use Medica Keelspray Lemon only as directed and consider the following safety points.

• Pregnancy: consult a healthcare professional before use; data are limited.
• Breastfeeding: exercise caution; limited information on excretion in milk.
• Allergy: avoid if known hypersensitivity to chlorhexidine, lidocaine or any formulation components.
• Age: not recommended for infants under 2 years without medical advice.
• Concurrent oral antiseptics: avoid simultaneous use to reduce irritation risk.
• Store at ambient temperature below 25°C: keep in the original container, protect from moisture and direct sunlight.

When using Medica Keelspray Lemon, be aware of potential drug interactions.

Major Interactions (Avoid)

• Other topical anesthetics containing lidocaine: risk of cumulative systemic toxicity.
• Alcohol‑based mouthwashes: may increase mucosal irritation.
• Ophthalmic chlorhexidine solutions: cross‑sensitisation may occur.

Moderate Interactions (Monitor Closely)

• Systemic antibiotics: may alter oral flora; monitor for overgrowth of resistant organisms.
• Anticoagulants: observe for prolonged bleeding if oral lesions are present.
• Chemotherapeutic agents causing mucositis: increased mucosal sensitivity may require dose adjustment.