WARNING It is recommended that Dacarbazine for Injection be administered under the supervision of a qualified physician experienced in the use of cancer chemotherapeutic agents. 1. Hemopoietic depression is the most common toxicity with Dacarbazine for Injection (see WARNINGS ). 2. Hepatic necrosis has been reported (see WARNINGS ). 3. Studies have demonstrated this agent to have a carcinogenic and teratogenic effect when used in animals. 4. In treatment of each patient, the physician must weigh carefully the possibility of achieving therapeutic benefit against the risk of toxicity.
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warnings
WARNINGS Hemopoietic depression is the most common toxicity with Dacarbazine for Injection and involves primarily the leukocytes and platelets, although, anemia may sometimes occur. Leukopenia and thrombocytopenia may be severe enough to cause death. The possible bone marrow depression requires careful monitoring of white blood cells, red blood cells and platelet levels. Hemopoietic toxicity may warrant temporary suspension or cessation of therapy with Dacarbazine for Injection. Hepatic toxicity accompanied by hepatic vein thrombosis and hepatocellular necrosis resulting in death, has been reported. The incidence of such reactions has been low; approximately 0.01% of patients treated. This toxicity has been observed mostly when Dacarbazine for Injection has been administered concomitantly with other anti-neoplastic drugs: however, it has also been reported in some patients treated with Dacarbazine for Injection alone. Anaphylaxis can occur following the administration of Dacarbazine for Injection.
ADVERSE REACTIONS Symptoms of anorexia, nausea and vomiting are the most frequently noted of all toxic reactions. Over 90% of patients are affected with the initial few doses. The vomiting lasts 1 to 12 hours and is incompletely and unpredictably palliated with phenobarbital and/or prochlorperazine. Rarely, intractable nausea and vomiting have necessitated discontinuance of therapy with Dacarbazine for Injection. Rarely, Dacarbazine for Injection has caused diarrhea. Some helpful suggestions include restricting the patient's oral intake of food for 4 to 6 hours prior to treatment. The rapid toleration of these symptoms suggests that a central nervous system mechanism may be involved, and usually these symptoms subside after the first 1 or 2 days. There are a number of minor toxicities that are infrequently noted. Patients have experienced an influenza-like syndrome of fever to 39°C, myalgias and malaise. These symptoms occur usually after large single doses, may last for several days, and they may occur with successive treatments. Alopecia has been noted as has facial flushing and facial paresthesia. There have been few reports of significant liver or renal function test abnormalities in man. However, these abnormalities have been observed more frequently in animal studies. Erythematous and urticarial rashes have been observed infrequently after administration of Dacarbazine for Injection. Rarely, photosensitivity reactions may occur.