Navelbine is an antimitotic chemotherapy drug given as a treatment for some types of cancer including breast cancer and non-small cell lung cancer. Navelbine uses an identifier name called vinorelbine. Navelbine works through inhibiting mitosis in a process that involves interaction with tubulin. Navelbine is obtained through semi-synthesis from alkaloids extracted from the roses of periwinkle called Catharanthus roseus. Navelbine treats cell lung cancer and breast cancer. Navelbine has similar efficacy as the intravenous formulation and avoids venous toxicities of an infusion and is easier to take. The vinorelbine drug treats are bruising, bleeding, constipation, and diarrhea, hypersensitivity to cold and irreversible tingling numbness.