Drug Reference
Fluorescein
Colouring agents
Rx only
Fact box
- Therapeutic class
- Colouring agents
- Action class
- Diagnostic Dye
- Mechanism
- Dyes
- Habit forming
- No
- Availability
- Prescription (Rx)
Brand names
AltafluorFlucaineFluoracaine
Available as
2.5 MG/ML · Ophthalmic Solution4 MG/ML · Ophthalmic Solution
FDA label sections are from openFDA and may not reflect the most recent labeling — confirm against the current DailyMed label.
Uses
INDICATIONS For testing tear film stability by determining the fluorescein break-up time (FBUT).
How to use / dosing
DIRECTIONS FOR USE Procedure for measuring Fluorescein Break-up Time (FBUT) with Amcon Dry Eye Test Strips. 1. Apply one or two drops of non-preserved saline to the impregnated paper tip. Excess fluid will automatically fall off. Shaking is neither required nor desirable. 2. Ask the patient to look down and in. 3. Gently touch the strip to the superior temporal bulbar conjunctiva for one or two seconds. 4. Ask the patient to blink three times and open eyes naturally. 5. Conduct the FBUT measurements immediately. 6. Perform two consecutive measurements. If not consistent, conduct a third and average the results. 7. Repeat steps 1 through 6 using a new strip for the second eye FBUT values of less than 10 seconds are considered abnormal. Values less than 5 seconds are indicative of dry eye disorder. Values of 5 to 9 seconds are borderline dry eye. NOTE: The contents may not be sterile if the individual strip package has been damaged or previously opened. This product is intended for external use only. Keep out of reach of children. Store below 30°C.
Safety advice
Conservative summary derived from FDA labeling — defaults to “consult your doctor” unless the label is explicit. Not a substitute for your clinician’s advice.
PregnancyNo information
No specific information in the FDA label.
BreastfeedingNo information
No specific information in the FDA label. Check LactMed →
AlcoholNo information
No specific information in the FDA label.
DrivingNo information
No specific information in the FDA label.
KidneyNo information
No specific information in the FDA label.
LiverNo information
No specific information in the FDA label.
Contraindications
CONTRAINDICATIONS Hypersensitivity to components or mercury-containing compounds.
Current FDA labels (DailyMed)
Authoritative sources
Reference only — not clinical advice. Verify against current FDA labeling and consult a licensed provider. About half of pediatric drug use is off-label and is not reflected in FDA labels; absence of pediatric information does not mean a medicine is unused or unsafe in children.