Cystagon: Uses, indications and precautions when using

Drugs that protect kidney function and manage kidney damage. Cystagon is also used to treat other problems in people with a genetic disorder caused by a build-up of cystine in the body. This can cause kidney diseases, growing body, weak bones or eye diseases. Cystagon works by removing cystine.

Please read carefully the information contained in the instructions for use in each box of medicine. See your doctor if you have any questions.
The drug is taken orally as prescribed, in the late afternoon four times a day or based on a doctor's prescription. Should be taken with food or after meals to relieve abdominal pain. For children under 6 years old do not use the whole capsule. Instead, open the capsule and take the medicine with food. The mixture of thieves should only be used once.
The dose of the drug can be changed depending on the patient's weight, age, body condition and ability to respond. The recommended dosage can be from low to high to avoid stomach upset.
Use the drug regularly, at the right dose, to achieve the best treatment effect.

During the course of taking the medicine you may experience problems such as: nausea, vomiting, fever, loss of appetite, fatigue, drowsiness and diarrhea. If these problems persist or develop in a bad way, you should get medical help.
Serious symptoms to watch out for:
Mental/mood changes (eg: Depression, deep sleep, seizures, unusual tiredness, headache,..) Hearing problems (eg: tinnitus), dizziness, Eye/vision problems (eg: Blurred vision, loss of vision, eye pain), Skin problems (eg: Thin skin, stretch marks , purple hemorrhagic patches on elbows), Bone problems (e.g., bones/joints/back pain, leg pain, broken bones). In addition, there may be black stools with or without blood, stomach pain, and vomit that looks like coffee grounds. Cystagon usually causes a rash, but it's not serious. Allergic reactions are possible but very rare.
Therefore, to avoid side effects before deciding to use you need:
Be careful if you are allergic to penicillamine. Talk to your doctor if you are allergic to the ingredients in the medicine or have other types of allergic reactions. Inactive substances in the product can affect your health. Tell your doctor your medical history, especially of: Liver disease, stomach/intestinal problems (e.g. bleeding, ulcers). The side effects of the drug can make you dizzy and drowsy. Subjects who use alcohol, marijuana will be worse than normal people. Limit alcohol use. Pregnant and lactating women should find out carefully, it is best to consult a doctor.

Reference source: webmd.com