Erdon contains diclofenac sodium, a non-steroidal substance with anti-inflammatory and analgesic effects. Inhibition of prostaglandin synthesis, which has been demonstrated in experiments, is considered to be fundamental to the mechanism of action of diclofenac. Prostaglandin plays a major role in the pathogenesis of inflammation and pain. Erdon has an anti-inflammatory effect when given after surgery or trauma to the eye, and in other non-infectious inflammatory conditions. It has been shown that prophylactic administration of Erdon in patients undergoing cataract removal and intraocular lens implantation reduces the frequency and severity of cystoid macular edema.



    Erdon Sterile Eye Drops: Each ml contains Diclofenac Sodium BP 1.0 mg.


    Inhibition of miosis during cataract surgery.

    Postoperative inflammation after cataract surgery and other surgical procedures. Preoperative and postoperative prevention of cystoid macular oedema associated with lens extraction and intraocular lens implantation. Non-infectious inflammatory conditions affecting the anterior region of the eye (e.g. chronic non-infectious conjunctivitis).

    Post-traumatic inflammation in penetrating and non- penetrating wounds (as an adjuvant to local anti-infective therapy).

Dosage & Administration

    Preoperative : 1 drop up to 5 times over the 3 hours preceding surgery.

    Postoperative : 1 drop 3 times immediately after surgery, thereafter 1 drop 3-5 times daily for as long as required.

    Other indications: 1 drop 4-5 times daily, depending on the severity of the condition.

    Long- term treatment should be considered only after careful assessment of the indication and ophthalmological examination.

    Children: No specific investigations have been carried out on the use of Diclofenac Eye Drops in children.


    Known hypersensitivity to diclofenac or thiomersal. Like other non-steroidal anti-inflammatory agents, Erdon is contraindicated in patients in whom attacks of asthma, urticaria or acute rhinitis have been observed following application of acetyl salicylic acid or other cyclo-oxygenase inhibitors.

Warning & Precautions

    Topical NSAID used in ophthalmological surgery can retard the bleeding time. Therefore patients tending toward uncontrolled bleeding or under therapy with anticoagulants should use Erdon with caution. If infection is present or there is a risk of infection, appropriate treatment (e.g. with antibiotics) should be given concomitantly. If the response to treatment is inadequate, the diagnosis should be re-evaluated (infection, hypersensitivity to the preparation).
    Patients experiencing blurred vision after application of Erdon eye drops should refrain from driving vehicles or use machinery until their vision has cleared.
    Note for patients wearing contact lenses: Contact lenses must be removed before the application and should only be inserted 15 min after application.

Side effects

    Occasional: Nausea, vomiting.
    Rare: Systemic hypersensitivity reactions like asthma, urticaria, itching, acute rhinitis. The following unwanted effects have been observed during clinical studies with Diclofenac Eye Drops. Occasional mild or moderate, transient stinging and/or blurred vision directly after application of eye drops.

Drug interaction

    Erdon can be combined with eye drops containing steroids, if necessary. To prevent the active substance being washed out by further doses, an interval of at least 5 minutes should be allowed to elapse between each application.

Use in special groups

    Pregnancy & Lactation: 1st and 2nd trimester: Pregnancy category B: Reproduction toxicity studies carried out in animals have not revealed evidence of an increased risk to the fetus, but no controlled studies have been conducted in pregnant women.

    3rd timester: Pregnancy category D: Erdon should not be prescribed because of the risk of a premature closure of the Ductus arteriosus Botalli and a possible inhibition of labour pains. After oral doses of 50 mg (content of 10 bottles), no adverse reactions for the infant are expected as only small amounts of the active subtance pass into the mother\'s milk.


    Erdon Sterile Eye Drops: Each LDPE dropper bottle contains 5 ml drops