Therapeutic Prospects Of Cow Urine In Cancer Treatment: Mechanisms, Preclinical Evidence, And Patented Innovations

Cancer is an ailment characterized by overgrowth and abnormal cell division in the body (Sriharikrishnaa et al., 2023). Under normal conditions, cells grow, divide, and die in a highly regulated process to maintain tissue health. But if this process is disintegrated, then damaged or abnormal cells multiply when they shouldn’t, producing a mass called a tumor. Tumors can be either benign or malignant Benign tumors are non-cancerous growths that typically remain localized to one area and do not invade nearby tissues or spread to other parts of the body  (Boutry et al., 2022), while malignant (cancerous) tumours are invasive and metastasize, or spread through the blood or lymphatic vessels, to form secondary tumours in different parts of the body (Bisoyi, 2022). Many cancers develop solid tumours, but it is rare for cancers of the blood, including leukaemia, to post this characteristic. Although they are not cancerous, certain benign tumors can grow to be relatively large and create life-threatening health problems, especially if the growth develops in a vital organ  (e.g. brain) (Adashek et al., 2020).

According to International Agency for Research on Cancer (IARC) in the year 2022, there were nearly 20 million new cancer cases with roughly 9.7 million cancer-related deaths worldwide, as well as this included non-melanoma skin cancers. These statistics show cancer remains a growing worldwide problem. Nearly one in five individuals (both men and women) can be expected to develop cancer and around about one out of nine men and one out of twelve women can be anticipated to die from it. Lung cancer was the most commonly diagnosed type of cancer worldwide, with 2.5 million new cases, making up 12.4% of all cancer diagnoses. It was followed by breast cancer (11.6%), colorectal cancer (9.6%), prostate cancer (7.3%), and stomach cancer (4.9%). Lung cancer also caused the most cancer-related deaths that year, accounting for 1.8 million fatalities (18.7%), while colorectal, liver, breast, and stomach cancers followed with 9.3%, 7.8%, 6.9%, and 6.8% of the deaths, respectively. Particularly, breast and lung cancers were the most commonly diagnosed and deadliest cancers in women and men, respectively. Notable geographic variation was observed, with prevalence rates ranging from over 500 per 100,000 in Australia/New Zealand to fewer than 100 per 100,000 in Western Africa among men, and from over 400 per 100,000 in Australia/New Zealand to around 100 per 100,000 in South-Central Asia among women. With demographic drifts indicating that new cancer cases will surge to 35 million by 2050, there is an actual need for sustained investments in cancer forestallment, particularly through the mitigation of crucial risk factors such as tobacco use, obesity, and infections. similar interventions could prevent millions of new cancer cases, reduce mortality, and offer profound economic and public health benefits globally (Bray et al., 2024).

1.1 Causes of Cancer

1.1.1 Inheritable Mutations: Oncogenes and Tumor Suppressor Genes in Cancer

Cancer is basically a genetic disease triggered by the accumulation of mutations that disturbs normal cellular regulation. These mutations normally affect two major classes of genes: oncogenes and tumor suppressor genes (TSGs Oncogenes are altered or largely active versions of regular genes known as proto-oncogenes. When switched on, they encourage cells to grow and survive more than they should, which can lead to the development of tumors (tumorigenesis). In discrepancy, TSGs suppresses cell division, repair DNA damage, and produce apoptosis; when they are inactivated or deleted, cancerous metamorphosis can occur. The inactivation of tumor suppressor genes (TSGs) plays an equally important role in the development of cancer as the activation of oncogenes does. TSGs such as p53, retinoblastoma protein (Rb), and PTEN are commonly inactivated in a wide range of cancers through genetic mutations, omissions, or epigenetic silencing mechanisms like DNA hypermethylation. These suppressor genes play a vital role in holding the cell cycle, fixing damaged DNA, and driving cell death when necessary. When these genes stop working duly, cells can escape the usual checks and balances, leading to uncontrolled growth (Chen et al., 2020).

1.1.2 Environmental, Lifestyle, and Infectious Causes of Cancer

Cancer development is strongly influenced by environmental exposures, personal habits, and certain infections. Smoking is the leading preventable cause, presenting carcinogens like nitrosamines and polycyclic aromatic hydrocarbons that damage DNA. Radiation (UV and ionizing) and exposure to dietary and chemical carcinogens such as processed meats, asbestos, and aflatoxins also increase risk. Lifestyle factors like obesity, physical inactivity, and alcohol consumption elevate cancer by causing chronic inflammation, hormonal imbalances, and DNA damage (Marcotte et al., 2021). Likewise infections such as HPV, HBV, and HCV are linked to cervical, liver, and distinct cancers through chronic inflammation or viral integration into host DNA. These adjustable dangers highlight the need for targeted prevention strategies (Schiller and Lowy, 2021).

1.2 Conventional Cancer Treatments in Modern Oncology

Conventional cancer treatment has evolved significantly over the past few decades, offering patients a range of therapeutic options encompassing surgery, chemotherapy, radiotherapy, immunotherapy, and targeted therapy. These strategies are often used in combination, depending on the cancer type, stage, and the patient’s overall condition. Chemotherapy continues to be a commonly employed treatment method that targets and eliminates cancer cells by attacking those that divide and grow rapidly throughout the body. Similarly, radiotherapy uses high energy radiation to kill or damage tumor cells at a specific site, while targeted therapies and immunotherapies designed to selectively attack cancer cells based on their molecular profile or immune evasion mechanisms. Despite their effectiveness in reducing tumor burden and improving survival rates, these treatments are frequently accompanied by a wide spectrum of adverse effects, many of which can severely affect the patient’s quality of life (Table1). Chemotherapeutic agents, particularly, are non-selective and often damage normal, rapidly dividing cells such as those in the bone marrow, gastrointestinal tract, hair follicles, and reproductive organs. This can lead to myelosuppression, immunosuppression, anaemia, fatigue, nausea and vomiting, alopecia, and infertility. Additionally, long-term or high-dose use of certain drugs can result in organ-specific toxicities, including cardiotoxicity, hepatotoxicity, neurotoxicity and nephrotoxicity (Kaur et al., 2022).

Table 1: Conventional Chemotherapeutic Agents with its side effects

Alternative cancer therapies are needed to enhance conventional treatments, particularly due to the considerable side effects and restrictions linked to standard chemotherapy and radiation. Ayurveda, the traditional Indian medical system, provides encouraging solutions via its comprehensive approach to wellness and recovery. Specifically, cow urine has attracted interest due to its possible anticancer properties. Scientific studies revealed that cow urine contains bioactive compounds showing immunomodulatory, antioxidant, and cytotoxic effects that may inhibit tumour growth and enhance the effectiveness of conventional cancer therapies. Additionally, it may help reduce treatment-related toxicity by boosting the body’s antioxidant defences. While these initial findings are encouraging, further rigorous clinical research is essential to confirm the safety and therapeutic benefits of cow urine as part of integrative cancer care.

1.3 Proposed Anticancer Effects of Cow Urine

Cow urine, traditionally revered in Ayurvedic medicine as part of the Panchagavya system, has long been used for its purported therapeutic benefits (Sathiyaraj et al., 2022). While historically associated with spiritual and detoxifying roles, recent years have seen growing scientific interest in cow urine’s pharmacological potential, particularly its anticancer properties. This shift is driven by the need for complementary therapies that can enhance the effectiveness and reduce the toxicity of conventional cancer treatments such as chemotherapy and radiotherapy. Preclinical studies have suggested that cow urine distillate may show immunomodulatory, antioxidant, anti-mutagenic, and bioenhancing effects, making it a candidate of interest in integrative cancer care (Singh et al., 2021).

2. Composition of cow urine showing anticancer activity

Cow urine contains a complex mixture of bioactive constituents, and several of them have been identified in preclinical studies to have potential anticancer activity through mechanisms like apoptosis induction, immune modulation, antioxidant activity, and bioenhancement of conventional drugs, mentioned in table 2.

Table 2: Composition of cow urine containing anticancer properties

3. Mechanism of action of cow urine in cancer

Scientific evidence suggests that cow urine as well as its distillate exhibit various biological properties that may contribute to anticancer activity. These effects are mediated through multiple interrelated mechanisms, including immune system stimulation, antioxidant activity, apoptosis induction, DNA protection, bioenhancement of chemotherapeutics, and support of detoxification pathways. Figure 1 provides a summary of cow urine’s therapeutic mechanisms in cancer treatment, showcasing its roles in immune modulation, oxidative stress reduction, anticancer activity, hepatoprotection, DNA protection, and enhancement of drug efficacy. The following subsections summarize these mechanisms and their relevance to cancer prevention and therapy.

3.1 Immunomodulatory Effects

Cow urine has been shown to modulate immune responses by stimulating the proliferation and activity of lymphocytes and macrophages, and enhancing the secretion of cytokines such as interleukin-1 (IL-1), interleukin-2 (IL-2), and tumor necrosis factor-alpha (TNF-α). These cytokines are critical mediators in anti-tumor immunity, enhancing the cytotoxic activity of natural killer (NK) cells and cytotoxic T lymphocytes. By activating these immune pathways, cow urine may facilitate the recognition and destruction of malignant cells, thereby contributing to tumor suppression (Kolathingal-Thodika et al., 2023).

3.2 Antioxidant Properties

Oxidative stress, driven by an excess of reactive oxygen species (ROS), plays a central role in carcinogenesis (Iqbal et al., 2024). Cow urine contains several antioxidant compounds such as uric acid, phenolic acids, and volatile fatty acids that help neutralize ROS and reduce oxidative damage to cellular components, including DNA. By scavenging free radicals, these constituents may prevent the initiation and progression of tumors (Malik et al., 2022).

3.3 Induction of Apoptosis

Programmed cell death (apoptosis) is a crucial mechanism for eliminating damaged or transformed cells. Cow urine distillate (CUD) has been reported to induce apoptosis in various cancer cell lines, including MCF-7 breast cancer cells. This effect is characterized by mitochondrial membrane depolarization, activation of caspases, and DNA fragmentation. Furthermore, compounds like tetracosanedioic acid, identified in CUD via high-resolution mass spectrometry, have shown potential as histone deacetylase (HDAC) inhibitors, suggesting a role in epigenetic regulation of apoptosis and cell cycle arrest in tumor cells (Raj et al., 2023b).

3.4 Anti-Mutagenic and DNA Repair Support

Mutagenesis is a fundamental step in the development of cancer, often triggered by exposure to environmental carcinogens (Goyal et al., 2022). Cow urine exhibits anti-mutagenic activity by reducing mutation rates in bacterial and mammalian cells exposed to mutagens such as benzo[a]pyrene and aflatoxins (Minocheherhomji., 2016). This protective effect is hypothesized to involve the enhancement of DNA repair mechanisms, possibly by upregulating enzymes involved in base excision and nucleotide excision repair. Such effects contribute to genomic stability and reduce the likelihood of malignant transformation (Prazdnova et al., 2022).

3.5 Enhancement of Drug Efficacy

Cow urine has been patented as a bio-enhancer (e.g., US6410059B1), particularly for its ability to enhance the bioavailability and therapeutic efficacy of conventional chemotherapeutic agents such as paclitaxel and rifampicin (Saxena and Singh, 2020). This bioenhancing property is believed to be mediated through modulation of cytochrome P450 enzymes and inhibition of drug efflux transporters like P-glycoprotein. By increasing intracellular drug concentrations and reducing multidrug resistance, cow urine may improve the outcomes of cancer chemotherapy while potentially allowing for dose reductions and reduced toxicity (Kumar et al., 2022).

3.6 Detoxification and Metabolic Support

Effective detoxification is essential in cancer prevention and treatment, particularly for reducing the systemic burden of carcinogens and reactive metabolites (Lee et al., 2020). Cow urine may enhance bile production and protect liver tissues from oxidative damage, thereby supporting the elimination of lipid-soluble toxins and reducing carcinogenic load (Bajaj et al., 2022).

Fig. 1: The diagram illustrates cow urine’s therapeutic role in cancer treatment, highlighting its immunomodulatory, antioxidant, anti-cancer, and hepatoprotective effects. It also emphasizes its role in DNA protection and drug bioenhancement, supporting its use in integrative oncology.

4. Preclinical Studies

4.1 Cytotoxic Effects on Cancer Cells

The study aimed to investigate the biological relevance of free fatty acids (FFAs) derived from the DMSO fraction of cow urine (CUDF) using both in vitro and in silico approaches. Recognizing the role of metabolic heterogeneity in the adaptability of cancer cells, particularly during drug response, the researchers examined the potential anticancer properties of FFAs present in CUDF. Fresh urine from healthy cows was processed to obtain a sterile DMSO fraction, which was then tested for antiproliferative and pro-apoptotic effects on MCF-7 and ZR-75-1 breast cancer cells through standard cell-based assays. A novel vertical tube gel electrophoresis (VTGE) method was employed to analyze intracellular metabolites in treated MCF-7 cells, revealing the presence of FFAs such as tetracosanedioic acid, 13Z-docosenoic acid (erucic acid), nervonic acid, 3-hydroxy-tetradecanoic acid, and 3-hydroxycapric acid. These compounds, particularly tetracosanedioic acid, demonstrated specific binding affinity to histone deacetylase (HDAC) active sites in molecular docking and molecular dynamics simulations, comparable to the known HDAC inhibitor trichostatin A. The findings suggest that FFAs from CUDF possess antiproliferative and pro-death activity against breast cancer cells, potentially mediated through HDAC inhibition (Raj et al., 2023c).

4.2 Bioenhancement of Chemotherapeutic Agents

Cow urine distillate (CUD) has been demonstrated to enhance the efficacy of paclitaxel (Taxol) in treating MCF-7 breast cancer cells. In vitro studies indicate that combining CUD with paclitaxel significantly reduces viable cell counts compared to paclitaxel alone. For instance, at a paclitaxel concentration of 0.01?µg/mL, treatment with paclitaxel alone resulted in a final viable cell count of 0.036?×?10?, whereas the combination with CUD reduced this count to 0.012?×?10?. This suggests that CUD may act as a bioenhancer, facilitating increased drug uptake or potency. These findings are detailed in the U.S. Patent No. 6,410,059, which discusses the use of cow urine distillate as a bioenhancer for anticancer agents (U.S. Patent No. 6,410,059, 2002).

4.3 Antioxidant and DNA Protective Properties

Redistilled cow urine distillate (RCUD) has shown significant antigenotoxic properties by protecting human polymorphonuclear leukocytes (PMNs) from DNA damage induced by known genotoxic agents such as actinomycin D and hydrogen peroxide. Actinomycin D, a DNA intercalating agent, and hydrogen peroxide, a reactive oxygen species, both cause oxidative damage and strand breaks in DNA, but RCUD treatment markedly reduced these effects in vitro. This protective activity is attributed to the presence of antioxidant constituents in RCUD, particularly volatile fatty acids and phenolic compounds, which act as free radical scavengers. By neutralizing reactive oxygen species and supporting redox balance within cells, RCUD helps maintain genomic stability under stress conditions. These findings suggest that RCUD may play a beneficial role in cancer prevention by reducing mutation rates, and potentially serve as a supportive therapy during chemotherapy to protect healthy cells from collateral genotoxic damage (Deoghare and Paliya, 2025).

4.4 In-Vivo Anticancer Activity

The anticancer potential of nutraceutical formulations fortified with cow urine distillate (CUD) was evaluated in N-methyl-N-nitrosourea (MNU)-induced mammary cancer in Sprague Dawley rats. The research demonstrated that formulations such as NFCUD (nutraceutical formulation with CUD) and SFNFCUD (self-fortified nutraceutical formulation with CUD) significantly reduced tumor incidence, multiplicity, and burden compared to formulations without CUD. These findings suggest that CUD may enhance the anticancer properties of nutraceuticals, potentially through its bioenhancing effects or inherent anticancer activity. The study underscores the potential of CUD as a complementary agent in cancer prevention strategies (Pitchaiah et al., 2017).

5. Patent Related to Cow Urine in Cancer Treatment

Patent Overview: U.S. Patent No. 6,410,059 B1 – Bioenhancer Role of Cow Urine Distillate

U.S. Patent No. 6,410,059 B1, presents compelling evidence supporting the role of cow urine distillate (CUD) as a bioenhancer that can significantly augment the efficacy of certain anticancer drugs. The patent outlines in vitro experiments using MCF-7 human breast cancer cells, where paclitaxel (Taxol)—a widely used chemotherapeutic agent—was combined with CUD to evaluate its cytotoxic effects. Notably, at a low concentration of 0.01 µg/mL paclitaxel, the addition of 1 µL/mL CUD resulted in a substantial reduction in viable cancer cells compared to paclitaxel alone. This enhanced effect suggests that CUD may increase the intracellular uptake or potency of paclitaxel. The mechanism proposed involves CUD’s potential ability to enhance drug transport across cellular membranes, thus increasing the bioavailability of the chemotherapeutic agent at the tumor site. Moreover, the bioenhancing effect was shown to be highly dose-sensitive, effective only at low concentrations, which aligns with traditional Ayurvedic usage and offers an explanation for why its therapeutic potential may have previously been overlooked in higher-dose pharmacological models. This patent supports the notion that CUD could serve as a natural adjunct in cancer therapy, potentially allowing for lower doses of cytotoxic drugs while maintaining or even improving therapeutic efficacy-an approach that could reduce side effects and improve patient outcomes.

6. Hypothesis

6.1 Adjunct Immune Support (Potential Benefit)

Cow urine has been reported to stimulate immune responses, particularly by enhancing innate immunity through increased activity of macrophages and natural killer (NK) cells. This immunostimulatory effect may provide supportive benefits during cancer immunotherapy or aid recovery in patients undergoing chemotherapy, where immune suppression is common. Such enhancement of immune function could potentially improve treatment outcomes and reduce infection risks. However, the immunomodulatory effects of cow urine are not yet standardized or consistently reproducible, which limits their reliability and clinical applicability. Further rigorous studies are necessary to understand the mechanisms, optimize dosing, and ensure safety. Until then, cow urine’s role in cancer care remains complementary and experimental. Therefore, caution is advised when considering its integration into conventional treatment protocols (Salvagno et al., 2019).

6.2 Gut Microbiota Modulation (Speculative)

Cow urine contains various salts and micronutrients that have the potential to influence the composition of the gut microbiota. A balanced and diverse gut microbiome is increasingly recognized for its important role in supporting immune surveillance and enhancing the body’s response to cancer therapies. By modulating gut bacteria, cow urine might indirectly contribute to improved treatment outcomes and overall patient health. However, to date, no controlled clinical studies have confirmed a direct link between cow urine consumption and beneficial changes in the microbiome or cancer therapy response. More rigorous research is needed to explore this potential interaction and its clinical relevance. Understanding the impact on the microbiome could open new avenues for integrative cancer care. Until then, these effects remain speculative and require further validation (Blake et al., 2024).

6.3 Hormetic Stress Response

Like other mild stressors, cow urine may induce a hormetic effect, where low-level stress triggers protective cellular responses such as increased production of antioxidant enzymes. This adaptive response could help healthy cells better resist damage caused by cancer treatments like chemotherapy and radiation. By boosting the cells’ own defense mechanisms, cow urine might reduce treatment-related toxicity and improve patient tolerance. However, caution is warranted because cancer cells could also gain increased resilience from these protective effects in certain contexts. This dual potential means the overall impact of cow urine’s hormetic effects is complex and not always beneficial. Further research is needed to clarify these mechanisms and their implications for cancer therapy. Until then, its use should be approached carefully within integrative treatment plans (Wu et al., 2020a). An overview of these potential supportive roles of cow urine in cancer care is presented in Figure 2, highlighting its immunomodulatory effects, influence on gut microbiota, and hormetic stress response.

Fig. 2: Illustrates the possible supportive roles of cow urine in cancer care, such as enhancing immune function, shaping gut microbiota, and inducing hormetic stress responses.