Cisplatin Plus Gemcitabine in Treating Patients With Advanced Squamous Cell Head and Neck Cancer

DISEASE CHARACTERISTICS: Histologically proven squamous cell carcinoma of the head and neck considered incurable with surgery or radiation therapy Bidimensionally measurable disease or readily evaluable disease by either physical exam or radiography Biopsy proven recurrence following completion of radiotherapy required if only site of measurable disease is within a previous radiation port PATIENT CHARACTERISTICS: Age: 18 and over Performance status: ECOG 0-1 Life expectancy: Not specified Hematopoietic: Absolute neutrophil count at least 2000/mm3 Platelet count at least 100,000/mm3 Hepatic: Bilirubin no greater than 1.5 mg/dL Renal: Creatinine no greater than 1.5 mg/dL OR Creatinine clearance at least 60 mL/min Neurologic: Peripheral sensory neuropathy no greater than grade 1 Other: No significant active infection (patients with WBC of 12,000/mm3 or greater, or fever of 100.6 degrees F or higher, must be evaluated to rule out occult infection) Not pregnant or nursing Effective contraception required of fertile patients No active second malignancy PRIOR CONCURRENT THERAPY: Biologic therapy: Prior biologic therapy (interleukin-2, interferon, monoclonal antibodies, and/or retinoids) permitted Recovered from prior biologic therapy Chemotherapy: No more than one prior chemotherapy regimen for advanced or relapsed disease No chemotherapy within 4 weeks prior to study Prior neoadjuvant or radiosensitizing chemotherapy allowed Endocrine therapy: Not specified Radiotherapy: Prior radiotherapy permitted Recovered from prior radiotherapy Surgery: Recovered from major surgery