Objectives: Tobacco (Nicotiana tabacum) is the most widely grown commercially, contributing a sizable amount to the economy. The researcher came up with this study to analyze and evaluate the use of Nicotiana tabacum (NT) as a flea eradicator for juvenile C. familiaris (CF). Methods: This experimental method aimed to investigate the effectiveness of NT as an insecticidal product, particularly as a flea eradicator for juvenile CF. Trial and error were used to determine the most effective ratio in making the dried and fresh NT a flea eradicator for juvenile CF. Mention the test and control group, period and level of treatment, etc Findings: From the three tests of NT-dried solution, treatment three registered the highest total, mean, and percentage, which is mean and 70%. For fresh leaves solution, Treatment 3 got the highest total average mean, percentage, and several fleas that died. It shows that out of 119 total average fleas, 8.67 died. The results show that NT solution-dried is the most effective flea eradicator, wherein fleas are eradicated on day 3 of application. It is followed by polycote, wherein fleas are eradicated on day 5. NT fresh is the least effective product among the three; fleas are not eradicated within the given days of application. Novelty: Flea is the major cause of skin diseases among dogs; hence this organic fleaeradicator, which can be easily found in the community, can be widely produced.