Pharma Seed Card #4 - Vincristine

Pharma-Seed #4 – Vincristine

In Pharma-Seed by Rahim DhallaLeave a Comment

FOUND IN: Catharanthus Roseus Common names: Church flower, Magdalena, Old Maid, Vinca Drug Name: Vincristine (Oncovin)

Madagascar Periwinkle is a popular plant found in gardens and homes across the world. Rich in vinca alkaloids, the discovery of this medicinal flower is famed for its wide spread use in chemotherapy regimens.

Madagascar Periwinkle

Medicinal Uses

Modern Day uses: A chemotherapeutic agent used in Hodgkin’s Lymphoma, Acute Lymphocytic Leukemia, Small Cell Lung Cancer and various others forms of cancer.

Originating in Madagascar, the periwinkle flower was traditionally used as an oral hypoglycemic agent for the treatment of diabetes[1] as well as an astringent for healing wounds, stings and bites. It wasn’t until the late 1940s that researchers found that these plant extracts prolonged the life of cancerous mice. This led to the discovery of vinca alkaloids that are now widely used in many chemotherapy regimens.

vincristine bottle
  • Vincristine in bottle
  • Warning symbol

    Potential Drug interactions:

    Vincristine is metabolized by the liver via CYP3A4, a major enzyme involved with metabolizing and inactivating drugs. Some potential drug interactions are those that inhibit 3A4 such as antifungals (Ketoconazole), some antibiotics (Biaxin) and potentially cannabis.

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Potential Drug interactions

Vincristine is metabolized by the liver via CYP3A4, a major enzyme involved with metabolizing and inactivating drugs. Some potential drug interactions are those that inhibit 3A4 such as antifungals (Ketoconazole), some antibiotics (Biaxin) and potentially cannabis.

Common Side Effects:

  • Alopecia
  • Constipation
  • Urinary retention
  • Nausea
  • Vomiting
  • Loss of appetite

Route of Administration:

IV only! Fatal if given intrathecally.

Chemotherapy side effects

How it works

Cancer is an overproduction of rapidly diving cells, aka tumors. In order to stop this growth, Vincristine enters the cells and halts division at the mitosis stage: where the cell splits into two. This inhibits the growth of the cancer and stops the cells from diving.

Limonene in cannabis

How it relates to cannabis

Many cancer patients utilize cannabis as part of their regimens to reduce pain, nausea and vomiting, all of which can be debilitating side effects of chemotherapy. Prescription medications, indicated for the use of chemotherapy-induced nausea and vomiting (CINV) and cancer-related pain such as Cesamet (nabilone) and Sativex (Nabiximols), have been either sub-therapeutic or too expensive. Many patients turn to full-spectrum, plant-based medications to alleviate symptoms and improve their overall quality of life. Studies have shown that the combination of cannabis and chemotherapeutic agents such as Vincristine can enhance the overall effects of chemotherapy, resulting in greater apoptosis (cell death) of cancerous cells[2].

Cancer cell and CB1 CB2 receptors

On the cellular level, cancerous cells exhibit higher expression of CB1/CB2 receptors than normal cells[3].

This plays into the notion that cannabis exerts “anti-cancer” effects. Cannabinoid receptors are found on several immune cell types that modulates the system. With cancer cells having more receptors for cannabinoids to bind to, introducing cannabis as a therapeutic treatment makes this plausible. When THC and CBD interacts with CB2 receptors on the immune system, it can modulate cytokine production (inhibit), proliferation (reduce) and apoptosis (increase). Cytokines are responsible for inflammatory and immunologic functionality such that when you sprain an ankle, have rheumatoid arthritis or tumor growth, cytokines are present. The effects of the endocannabinoid system are vast and is still unknown. More research is needed, however the potential avenues for therapy are very promising.


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It takes 2,000 pounds of dried periwinkle leaves to extract just 1 gram of vinblastine from the Madagascar periwinkle!

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In India, people used to squeeze the fresh juices out of the leaves of the periwinkle to treat wasp stings.

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In Puerto Rico a tea infusion of the flowers was commonly used to treat puffy eyes.

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Catharanthus roseus produces more than 70 different alkaloids

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Up until the 1960's the long-term survival rate for childhood leukemia was below 10%? Now, compare that to today, with a long-term survival rate above 90%!! Thank you C. roseus!

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Dr. J.B. Collip, at the University of Western Ontario, was the first to isolate the medicinal components of periwinkle.

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Uses in Traditional Chinese Medicine (TCM)

TCM name: Pinyin – Chang Chun Hua

TCM bitter tase



TCM pungent tasete

Resolve Damp and Fire


Calms mind / Detoxifying


Liver / Kidney


Chang Chu Hua has been used in TCM for thousands of years.

Chang Chu Hua has been used in TCM for thousands of years to treat a wide variety of conditions related to dampness (accumulation of irregular substances) as well as heat/fire (fever, inflammation, infection, stress, hyper function, overstimulation) symptoms.

This herb has a slight toxic property to it, so much be used with caution under the guide of a skilled Herbalist / Pharmacist.

This herb is typically used in cases of hypertension, swelling and abscess, skin inflammation as well as certain types of cancer such as malignant tumors, leukemia and lymphosarcoma .

Sheng Jiang - Ginger
Chang Chu Hua is used to treat a wide variety of conditions related to dampness (accumulation of irregular substances)

Uses in holistic wellness

Please first consult with a health care professional before using this recipe.
Not only is this a beautiful flower that comes in white and rose colour but it has a number of antibacterial, antimicrobial & antifungal properties. The periwinkle plant has active components like alkaloid, flavonoids, steroids and phenolic acids. It is important to note that periwinkle should not be taken in high doses and to consult a natural medicine practitioner before using. Due to its properties, one holistic use is to help heal wounds. The remedy is outlined below:

Wound care treatment

Periwinkle wound remedy

  • STEP 1

    Boil Periwinkle leaves in water until half of the water has evaporated

  • STEP 2

    Soak a clean cloth in the water and rinse out excess liquid

  • STEP 3

    Place on wound twice a day until healed.

The fresh leaves can additionally be dried, powdered and stored in an airtight bottle for later use. Some practitioners prescribe periwinkle tea once a week for the obstruction of mucus in intestines and lungs. Do not drink tea unless prescribed as it can have toxic effects!

  1. (1969) Historical Review of Vinca Alkaloids, Acta Radiologica: Diagnosis, 8:sup291, 7-12
  2. Scott, K., Dalgleish, A. and Liu, W. (2017). Anticancer effects of phytocannabinoids used with chemotherapy in leukaemia cells can be improved by altering the sequence of their administration. International Journal of Oncology, 51(1), pp.369-377.
  3. Martinez-Martinez, E., Gomez, I., Martin, P., Sanchez, A., Roman, L., Tejerina, E., Bonilla, F., Garcia-Merino, A., de Herreros, A., Provencio, M. and García, J. (2015). Cannabinoids receptor type 2, CB2, expression correlates with human colon cancer progression and predicts patient survival. Oncoscience, 2, p.131.
  4. Thomas, B. (2017). Interactions of Cannabinoids With Biochemical Substrates. Substance Abuse: Research and Treatment, 11, p.117822181771141.

Uses in Traditional Chinese Medicine (TCM) provided by J.P. Brunelle

Uses in holistic wellness and recipe provided by Holistic Health Coach Sarah Kincaid Kelly

About the Author

Rahim Dhalla

Hi, I am Rahim. I am the pharmacist and owner of Hybrid Pharm. I started this concept because of my passion for helping the community live happier, healthier lives. I want to spread my knowledge of medicines and healthy lifestyle options so we can grow, learn and smile together. Read the full bio.

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