Zyflo CR: A Complete Guide on Uses, Dosage, Demographic, Side Effects, Interactions, and Generic Options Zyflo CR is a medication that belongs to the class of leukotriene modifiers. It is used for the treatment of asthma in people who are 12 years or more. The medication is usually prescribed by doctors along with other asthma medicines, such as inhaled corticosteroids, to control and prevent asthma symptoms. Uses Zyflo CR (zileuton) works by blocking the action of leukotrienes, which are the chemicals produced by the body in response to an allergen. These chemicals are responsible for causing inflammation in the airways, leading to asthma symptoms such as wheezing, coughing, and shortness of breath. By blocking the action of leukotrienes, Zyflo CR reduces inflammation in the airways, making it easier to breathe. Dosage The dosage of Zyflo CR usually depends on the severity of asthma. The initial recommended dosage of the medication is 600 mg, taken twice a day, with food. After a week, the doctor may lower the dose to 400 mg, taken twice a day, with food. The maximum dosage recommended by doctors is 1200 mg per day. Demographic Zyflo CR is approved for use in patients who are 12 years or more. However, the medication may not be suitable for everyone. The doctor may carry out several tests to determine if Zyflo CR is safe for the patient. For instance, they may check for liver disease, as the medication is metabolized in the liver. Side Effects Like all medicines, Zyflo CR may cause side effects. The most common side effects include headache, upset stomach, and diarrhea. Less common side effects include flu-like symptoms, such as fever and chills, and skin rash. In some rare cases, Zyflo CR may cause liver damage, which may manifest through symptoms such as abdominal pain, yellowing of the skin and eyes, and dark-colored urine. Interactions Zyflo CR may interact with other medicines, especially those that are processed by the liver. For instance, the medication should not be taken with blood thinners, such as warfarin, as it may increase the risk of bleeding. Similarly, Zyflo CR should not be taken with certain antibiotics, such as erythromycin, and antidepressants, such as fluoxetine, as it may increase the risk of side effects. Generic Options Zyflo CR is the brand name of zileuton, and there are currently no generic versions of the medication available in the United States. However, some pharmacies may offer the generic version of the medication, which is called zileuton extended-release tablets. Conclusion Zyflo CR is a medication that is used for the treatment of asthma in people who are 12 years or more. The medication works by blocking the action of leukotrienes, which are responsible for causing inflammation in the airways. Zyflo CR may cause side effects, and it may interact with other medicines. Although there are no generic versions of the medication available in the United States, some pharmacies may offer the generic version of the medication under the name zileuton extended-release tablets. It is important to consult with a doctor before taking Zyflo CR to determine if it is safe and appropriate for the patient.