This study evaluates the prophylactic effect of exogenous L-CARNOSINE in Oxaliplatin induced peripheral neuropathy, Thus half of the patients will receive L-CARNOSINE with Oxaliplatin and the other half will not receive L-CARNOSINE with their chemotherapy (oxaliplatin),And then neuropathy together with some oxidative stress markers will be assessed at the end of treatment duration (three months) .

Oxaliplatin causes peripheral neuropathy , L-CARNOSINE is supposed to prevent this side effect possibly by reducing oxidative stress and enhancing the growth of nerves.This study is intended to clarify the effect and mechanism of action of L-CARNOSINE in preventing Oxaliplatin induced peripheral neuropathy in cancer patients.

Blood samples will be collected from the patients before starting the chemotherapy and at the end of treatment duration (3 months) and then oxidative stress markers will be measured in these samples

Inclusion Criteria:

Patients are eligible to be enrolled in this study, if they meet the following criteria

1. Elderly males and females with age (˃18 and ˂60).
2. Cancer patients treated with oxaliplatin for the first time (dose 85- 135mg/m2) administered every two to three weeks for 3 months.

Exclusion Criteria:

Excluded from this study are the patients with the following Criteria:

• Suffering from diabetes mellitus.
• Suffering from peripheral neuropathy as a result of any other disease or drug.
• Suffering from severe renal impairment (CrCl ˂ 30 ml/min).
• Suffering from epilepsy.
• Taking vitamin B.
• Who previously took Oxaliplatin or any other chemotherapeutic agent that causes peripheral neuropathy.
• Taking antidepressants or MAOI's.
• Taking NSAIDs, paracetamol, opiates or any other analgesics or pain killers.
• Pregnant or lactating patients.