Drug Interactions between Caduet and Chloromycetin Sodium Succinate

Chloramphenicol may increase the blood levels of amLODIPine. You may be more likely to experience serious side effects such as irregular heart rhythm, fluid retention, swelling, heart failure, and excessively low blood pressure. You may need a dose adjustment or more frequent monitoring by your doctor to safely use both medications. You should seek medical attention if you develop dizziness or fainting; sudden, unexplained weight gain; swelling of the hands, ankles, or feet; chest pain; or difficulty breathing during treatment with these medications. Avoid driving or operating hazardous machinery until you know how the medications affect you, and use caution when getting up from a sitting or lying position. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

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Consumer information for this interaction is not currently available.

MONITOR: Coadministration with inhibitors of CYP450 3A4 may increase the plasma concentrations of HMG-CoA reductase inhibitors (i.e., statins) that are metabolized by the isoenzyme. Lovastatin and simvastatin are particularly susceptible because of their low oral bioavailability, but others such as atorvastatin and cerivastatin may also be affected. High levels of HMG-CoA reductase inhibitory activity in plasma is associated with an increased risk of musculoskeletal toxicity. Myopathy manifested as muscle pain and/or weakness associated with grossly elevated creatine kinase exceeding ten times the upper limit of normal has been reported occasionally. Rhabdomyolysis has also occurred rarely, which may be accompanied by acute renal failure secondary to myoglobinuria and may result in death. Clinically significant interactions have been reported with potent CYP450 3A4 inhibitors such as macrolide antibiotics, azole antifungals, protease inhibitors and nefazodone, and moderate inhibitors such as amiodarone, cyclosporine, danazol, diltiazem and verapamil.

MANAGEMENT: Caution is recommended if atorvastatin, cerivastatin, lovastatin, simvastatin, or red yeast rice (which contains lovastatin) is prescribed with a CYP450 3A4 inhibitor. It is advisable to monitor lipid levels and use the lowest effective statin dose. All patients receiving statin therapy should be advised to promptly report any unexplained muscle pain, tenderness or weakness, particularly if accompanied by fever, malaise and/or dark colored urine. Therapy should be discontinued if creatine kinase is markedly elevated in the absence of strenuous exercise or if myopathy is otherwise suspected or diagnosed. Fluvastatin, pravastatin, and rosuvastatin are not expected to interact with CYP450 3A4 inhibitors.

AmLODIPine may increase the blood levels of atorvastatin. This can increase the risk of side effects such as liver damage and a rare but serious condition called rhabdomyolysis that involves the breakdown of skeletal muscle tissue. In some cases, rhabdomyolysis can cause kidney damage and even death. You may need a dose adjustment or more frequent monitoring by your doctor to safely use both medications. Let your doctor know immediately if you have unexplained muscle pain, tenderness, or weakness while taking these medications, especially if these symptoms are accompanied by fever or dark colored urine. You should also seek immediate medical attention if you develop fever, chills, joint pain or swelling, unusual bleeding or bruising, skin rash, itching, loss of appetite, fatigue, nausea, vomiting, dark colored urine, and/or yellowing of the skin or eyes, as these may be signs and symptoms of liver damage. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

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