Talwin NX and Vincasar PFS

• Generic Name: naloxone / pentazocine
• Dosage Forms: n.a.
• Other Brand Names: Talwin NX

Pentazocine and naloxone combination is used to relieve moderate to severe pain.

Pentazocine belongs to the group of medicines called narcotic analgesics (pain medicines). It acts on the central nervous system (CNS) to relieve pain.

Naloxone is an opioid antagonist. It acts on the CNS to block the effects of narcotics, especially the "high'' feeling that makes you want to use them. It will not produce any narcotic-like effects or cause mental or physical dependence.

When pentazocine is used for a long time, it may become habit-forming, causing mental or physical dependence. However, people who have continuing pain should not let the fear of dependence keep them from using narcotics to relieve their pain. Mental dependence (addiction) is not likely to occur when narcotics are used for this purpose. Physical dependence may lead to withdrawal side effects if treatment is stopped suddenly. However, severe withdrawal side effects can usually be prevented by gradually reducing the dose over a period of time before treatment is stopped completely.

This medicine is available only with your doctor's prescription.

• Generic Name: vincristine
• Dosage Forms: injection, solution
• Other Brand Names: Oncovin, Vincasar PFS

Vincasar PFS is cancer medication that interferes with the growth of cancer cells and slows their spread in the body.

Vincasar PFS is used to treat leukemia, Hodgkin's disease, non-Hodgkin's lymphoma, rhabdomyosarcoma (soft tissue tumors), neuroblastoma (cancer that forms in nerve tissue), and Wilms' tumor.

Vincasar PFS is sometimes used in combination with other cancer medications.

Vincasar PFS may also be used for other purposes not listed in this medication guide.