What is OTIPAX 15ml (Phenazone and Lidocaine Ear Drops)?
OTIPAX 15ml is a combined ear drop preparation containing two active substances — phenazone (40 mg/ml) and lidocaine hydrochloride (10 mg/ml) — that work together to relieve pain and inflammation in the ear. It belongs to the pharmacological group of non-steroidal anti-inflammatory drugs and topical anaesthetics for external use.
How OTIPAX Ear Drops Work
Phenazone inhibits the enzyme cyclooxygenase, which catalyses the conversion of arachidonic acid into inflammatory mediators such as prostaglandins, leukotrienes, and prostacyclin. By reducing their concentration, it diminishes hyperaemia, oedema, and pain at the site of inflammation. Lidocaine hydrochloride acts as a local anaesthetic by blocking impulses from sensory nerve fibres, reducing pain sensitivity. Together, these active substances significantly speed up and enhance the analgesic and anti-inflammatory effects.
When instilled into the external auditory canal, the active substances do not enter the systemic bloodstream, provided the integrity of the tympanic membrane remains intact.
OTIPAX Indications
OTIPAX ear drops are indicated for inflammatory pathology of the external and middle ear in adults and children:
- Acute otitis media during the pronounced inflammatory phase, accompanied by pain
- Otitis media complicated by acute respiratory viral infection or influenza
- Barotrauma-associated otitis (inflammatory reaction of the middle ear provoked by a sharp drop in atmospheric pressure)
Contraindications
- Individual intolerance to phenazone, lidocaine hydrochloride, or any excipient
- Perforation or damage to the integrity of the tympanic membrane
Dosage and Administration
Administer OTIPAX ear drops into the external ear canal using the included dropper. Warming the bottle in your hand for a few minutes before use is advisable. The recommended dose is 3–4 drops, 2–3 times daily. Treatment should not exceed 10 days.
Side Effects
OTIPAX ear drops are generally well tolerated. Occasionally, an allergic reaction may develop in the form of burning, itching, or reddening of the skin of the external auditory canal.
Special Instructions
- Instilling the solution into a damaged tympanic membrane can lead to complications, including hearing loss.
- The product contains an active substance that may cause false positive results in doping control tests for athletes.
- OTIPAX ear drops are safe for use by pregnant women, breastfeeding women, and children, as the active ingredients do not enter the bloodstream.
- The drug does not affect the cerebral cortex, psychomotor reactions, or concentration.
Pack Contents and Storage
Each pack contains one 16 ml dark glass vial, a dropper, and a package leaflet. Shelf life is 5 years from manufacture; once opened, use within 6 months. Store in a dark place below 30°C, in original packaging, out of reach of children. Do not freeze.

Filip –
Decent product. Thanks.