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Prescribing Information


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Dosage and Administration1

CYSTARAN is provided in a 15-mL bottle of sterile ophthalmic solution. Each mL contains
6.5 mg cysteamine hydrochloride or 4.4 mg of cysteamine.

The recommended administration is 1 drop instilled in each eye, every waking hour.
Click here to see the full Prescribing Information for CYSTARAN.

To minimize contamination, care should be taken not to touch the eyelids or surrounding areas with the dropper tip of the bottle. The bottle should be kept tightly closed when not in use.

Thawed CYSTARAN drops can be stored at 2°–25° C (36°–77° F) for up to 1 week. Do not refreeze. Discard the bottle after 7 days, even if there is still medication in it. CYSTARAN solution is only stable for 1 week.

CYSTARAN contains benzalkonium chloride, which may be absorbed by soft contact lenses. Contact lenses should be removed prior to application of solution and may be reinserted 15 minutes following its administration.

CYSTARAN is for ophthalmic use only.

For information about CYSTARAN, or to place an order, please call: 1‑877‑534‑9627.
For medical information about CYSTARAN, please call: 1‑866‑634‑2765.

Reference: 1. CYSTARAN [prescribing information]. Gaithersburg, MD: Leadiant Biosciences, Inc.; 2012.


CYSTARAN is a cystine-depleting agent indicated for the treatment of corneal cystine crystal accumulation in patients with cystinosis.

Important Safety Information:

The most frequently reported ocular adverse reactions occurring in ≥10% of patients were sensitivity to light, redness, eye pain/irritation, headache, and visual field defects.