Uses of Cystadrops

Cystadrops is a viscous or thick cystine-depleting ophthalmic solution, commonly indicated in the treatment of cystine crystal deposition in the corneas of both adults and children living with bladder disease. Cystinosis is considered a rare, complicated disease that requires patients to manage many different drugs every day.

Studies have shown that Cystadrops significantly reduces cystine crystal deposition in the cornea and is the first and only FDA-approved cysteamine dropper formulation for 4 times daily dosing. Cystinosis is a rare inherited condition from birth that causes the accumulation of cystine crystals throughout the body, causing extensive tissue and organ damage, and significant effects on eye. Cysteamine works by reducing the amount of cystine - an amino acid in the body. Cysteamine is used in people with cystinosis (SIS-tin-OH-sis) - a rare genetic condition that causes cystine to build up in the kidneys and many other organs, including the eyes. .
Cystadrops (for the eye) are used to prevent cystine crystals from accumulating in the cornea (surface of the eye). In addition, it may also be used for many other purposes not listed in this medication guide as directed by your doctor.

3.1. Dosage Cystadrops must not be taken orally, only for the eyes. Patients should carefully read and follow all instructions mentioned on the label or leaflet. The drug is usually given once every hour while the patient is awake and 4 times a day.
In addition, patients should not use Cystadrops while wearing soft contact lenses, because its preservative can permanently stain the lenses. Instead, patients should take the medication at least 15 minutes before wearing contact lenses. Hands should be cleaned before using eye drops.
3.2. How to use To instill, the patient tilts his head back slightly and gently pulls the lower eyelid down with a fingertip to make room for the instillation. With the other hand, hold the upper dropper close to the eye and gently squeeze a drop into the pouch. After applying, close your eyes for about 1-2 minutes.
Note: Use only the correct amount of drops prescribed by your doctor. During instillation, do not let the tip of the dropper touch the eye or place it directly on the eye. If the dropper is dirty, it can infect the patient's eyes and lead to serious vision problems.
3.3. In case of forgetting to take a dose, the patient should take the supplement as soon as he remembers, then use it as usual, absolutely do not make up for it by taking 2 doses at the same time.
An overdose of cysteine ​​is not thought to be dangerous. If you encounter strange phenomena or an emergency situation when you overdose, the patient should immediately contact a medical center or doctor for timely treatment.

4.1. Contraindications The drug is contraindicated for children under 18 years of age, for women who are pregnant or breastfeeding, tell your doctor about the situation for instructions on how to take the medicine safely.
4.2. Side effects During the use of Cystadrops, the patient may experience the following symptoms:
Need urgent medical help: Swelling of the face, hives, difficulty breathing, swelling of the throat, tongue or lips. Contact your doctor right away if you have any of these serious side effects: Tinnitus, dizziness, increased pressure inside the skull - severe headache, nausea, pain behind the eyes, or vision problems. Common side effects: Vision problems, eyes sensitive to light, headache, eye pain, red eyes, itchy or irritated eyes. The above is not a complete list of side effects of the drug, other phenomena may still occur. Therefore, patients should contact their doctor for the most accurate advice about side effects.
4.3. Drug Interactions Eye drops are not likely to be affected by other medications you are taking, however many drugs can cause interactions. Therefore, patients should inform their doctor or pharmacist of all medications they are taking, including prescription and non-prescription drugs, herbal products, and vitamins.
4.4. Some other notes The medicine should be stored in the freezer until the patient needs to use it, defrosted for 24 hours before the first instillation. Then close the bottle cap tightly, avoid exposure to light and keep in the refrigerator or room temperature, absolutely do not continue to freeze after defrosting. Discard the vial after 1 week of use, even if the contents are still intact. If using the next vial, the patient should remove the new vial from the freezer and thaw it within 24 hours, to avoid missing a dose. Dosage requirements may change if the patient switches to another brand or depending on the strength of Cystadrops. To avoid dosage errors, take only the form and strength that your doctor has prescribed. Keep the medicine out of the reach of children, do not share it with others and only use it when prescribed and prescribed by a doctor. We have just learned about the use of Cystadrops and the important notes that patients need to remember. Hopefully, through this article, you will know how to use the drug safely and effectively.