Fluorescein

2. DOSAGE & ADMINISTRATION The normal adult dose of Fluorescein Injection 10%, is 5 mL (500 mg) and of Fluorescein Injection 25%, is 2 mL (500 mg) via intravenous administration. 7 mg/kg body weight). 2 ) Do not mix or dilute with other solutions or drugs.

1 Dosing Adult Dose The recommended dosage of Fluorescein Injection 10% (100 mg/mL) and of Fluorescein Injection 25% (250 mg/mL) is 500 mg via intravenous administration. 7 mg/kg (actual body weight) up to a maximum of 500 mg, via intravenous infusion calculated on the basis of 35 mg for each 10 lbs.

54 kg) of body weight. 2 Preparation for Administration Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration. Do not mix or dilute with other solutions or drugs. Discard unused portion.

3 Administration Inject the dose (over 5-10 seconds is normally recommended) into the antecubital vein, after taking precautions to avoid extravasation. A syringe, fi led with Fluorescein, may be attached to transparent tubing and a 23 gauge butterfly needle for injection.

Insert the needle and draw the patient's blood to the hub of the syringe so that a small air bubble separates the patient's blood in the tubing from the fluorescein. With the room lights on, slowly inject the blood back into the vein while watching the skin over the needle tip.

If the needle has extravasated, the patient's blood will be seen to bulge the skin and the injection should be stopped before any fluorescein is injected. When assured that extravasation has not occurred, the room light may be turned off and the fluorescein injection completed.

Luminescence usually appears in the retina and choroidal vessels in 7 to 14 seconds and can be observed by standard viewing equipment. , scanning laser ophthalmoscope is used.

6. ADVERSE REACTIONS The most common adverse reactions include skin discoloration, urine discoloration, nausea, vomiting, and gastrointestinal distress. 1 Skin and urine discoloration The most common reaction is discoloration of the skin and urine.

Skin will attain a temporary ye lowish discoloration. Urine attains a bright ye llow color. Discoloration of the skin usually fades in 6 to 12 hours and usually fades in urine in 24 to 36 hours. 2 Gastrointestinal Reaction The next most common adverse reaction is nausea.

Vomiting, and gastrointestinal distress have also occurred. A strong taste may develop after injection. 3 Hypersensitivity Reactions Symptoms and signs of hypersensitivity have occurred. Generalized hives and itching, bronchospasm and anaphylaxis have been reported.

1 )] . 4 Cardiopulmonary Reactions Syncope and hypotension may occur. 1 )] . 5 Neurologic Reactions Headache may occur. Convulsions may rarely occur following injection. 6 Thrombophlebitis Thrombophlebitis at the injection site has been reported.

Extravasation of the solution at the injection site causes intense pain at the site and a dull aching pain in the injected arm. 2 )] .

5. WARNINGS AND PRECAUTIONS Respiratory reactions. 1 ) Severe local tissue damage. 1 Respiratory Reactions Caution should be exercised in patients with a history of allergy or bronchial asthma. An emergency tray should always be available.

05 mL injected intradermally to be evaluated 30 to 60 minutes following injection. Given the sensitivity and specificity of skin testing, a negative skin test is not proof that a patient is not allergic to fluorescein. 2 Severe local tissue damage Extravasation during injection can result in severe local tissue damage due to high pH of fluorescein solution.

The following complications resulting from extravasation of fluorescein have been noted to occur: Sloughing of the skin, superficial phlebitis, subcutaneous granuloma, and toxic neuritis along the median nerve in the antecubital area.

Complications resulting from extravasation can cause severe pain in the arm for up to several hours. When extravasation occurs, the injection should be discontinued and conservative measures to treat damaged tissue and to relieve pain should be implemented.

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4. CONTRAINDICATIONS Hypersensitivity to any component of this product. 1 Hypersensitivity Fluorescein Injection, USP is contraindicated in patients with known hypersensitivity to fluorescein sodium or any other ingredients in this product.

2 )] .