RSO For Breast Cancer: How Women Are Using Cannabis Oil in 2025

Introduction

Breast cancer continues to affect a whole lot of women across the U.S. every year. While traditional treatments like chemotherapy, radiation, and hormone therapy remain important, many people turn to explore alternatives treatments to help manage their side effects and also improve their overall well-being. Among those alternative treatments, the most talked-about in 2025 is Rick Simpson Oil (RSO) which is a full-spectrum cannabis extract.

This blog would explain to you how women are integrating RSO into their breast cancer treatment plans, what the current research say, how to properly dose and use the oil safely under medical supervision.


What Is RSO and Why Are Women Using It for Breast Cancer?

Rick Simpson Oil is a thick and sticky cannabis oil which is rich in THC, CBD, CBN, and other therapeutic terpenes. Unlike regular CBD oil, RSO is a full-spectrum and extremely potent oil, with its level of THC often higher 70%.

Women are turning to RSO for several reasons, which are:

  • To relieve chronic pain, especially during or after mastectomy or lumpectomy
  • To ease nausea and vomiting associated with chemotherapy
  • To improve appetite and rest during hormone or radiation therapy
  • To help manage anxiety and emotional stress associated with diagnosis and treatment
  • Some also believe it may offer anti-cancer support when used as a complementary therapy

What the Research Says About RSO for Breast Cancer (2025 Update)

While more research on this are ongoing, the have found a lot of possitive things about the oil which is:

  • THC and CBD have shown anti-proliferative effects in breast cancer cells in the lab
  • Animal models show tumor size reduction and increased apoptosis (cancer cell death) when using cannabinoid compounds
  • A 2024 U.S. based patient analysis show that 71% of breast cancer patients using cannabis, especially RSO, sent a report of the oil improving their quality of life
  • Medical cannabis clinics in California and New York have been prescribing RSO capsules to women undergoing treatment and they are getting positive feedback

Despite all the evidence that keeps coming up daily, experts in the medical field still consider RSO as a supportive treatment and not a cure, in other to avoid any complications, always use the oil under medical supervision.


How Women Are Using RSO During Breast Cancer Treatment

RSO doesn’t have a standard size for everyone. It can be customized to fit every woman’s experience. Here are the most common ways of using the oil:

1. Nighttime Relief (Capsules or Tinctures)

Many women take RSO at night to get relieve from body pain, anxiety, and better sleep. RSO capsules offer you an already measured doses, while the tinctures allow you take control.

2. Microdosing During the Day

Women who get stress during the day or get inflammation use 2.5 to 5mg of RSO to stay calm without getting high.

3. RSO Suppositories

Its ideal for those who are sensitive to THC and can’t deal with its psychoactive effects, the suppositories turn to deliver the cannabinoids with little or no impact to your mental health.

4. Post-Chemotherapy Care

RSO can help you fight nausea, regain your appetite, and help you relax when going through chemotherapy.


Real Stories: U.S. Women Using RSO for Breast Cancer

Sophia (Age 46 – California)
After her third round of chemo, Sophia began taking 10mg RSO capsules at night. She says it was the only thing that helped her sleep and eat. “The mornings were tough, but knowing I had that relief waiting made a big difference.”

Monica (Age 51 – Illinois)
Diagnosed with hormone-positive breast cancer, Monica worked with a cannabis nurse to incorporate a THC:CBD RSO tincture. It helped her with joint pain and insomnia caused by hormone-blocking medications.

Danielle (Age 38 – New York)
Undergoing radiation, Danielle used RSO gummies to help manage her mood swings and night sweats. She gives all the credits to cannabis for helping her stay mentally strong when going through the experience.


Is It Safe to Use RSO with Chemotherapy or Hormone Therapy?

Most patients tolerate RSO well when properly dosed and monitored. However, RSO can:

  • Affect liver enzyme function, which may influence how drugs are metabolized
  • Cause interactions with hormone blockers, especially those processed via the liver
  • Lead to sedation or low blood pressure if too much is taken

Always consult a cannabis-trained physician or oncology nurse before introducing RSO to your regimen. More U.S. clinics now offer cannabis consultation alongside traditional treatment.


Each patient’s sensitivity to THC will differ, but general dosing guidelines include:

  • Beginner Dose: 2.5mg THC at night
  • Moderate Use: 5–10mg at night or split into two doses
  • Full RSO Protocol (for advanced cases): 60g over 90 days (medical supervision required)

Titration is key. Start with small does, increase slowly with time, and track the symptoms you get and also how much you improve.


Women can legally get RSO from a licensed dispensaries in their state with medical marijuana card. Breast cancer patients from the following states can legally get RSO:

  • California
  • Florida
  • New York
  • Michigan
  • Colorado
  • Arizona

To buy it legally, you must:

  1. Obtain a medical marijuana recommendation
  2. Visit a state-approved dispensary
  3. Choose a lab-tested, full-spectrum cannabis products labeled with the THC/CBD mark on it

Final Thoughts: RSO as a Holistic Support Option

RSO has emerged as one of the most resputable cannabis-based treatment for women battling with breast cancer. While they still refuse to consider it a cure, it can:

  • Bring physical comfort
  • Support mental clarity and sleep
  • Help women feel empowered in their care

If you or your loved one is battling breast cancer, do well to speak with them about RSO as a potential option for healing journey. In 2025, women have tools which are much safe and natural to help themm fight breast cancer and RSO is the one leading the chat.


Explore our collection of RSO products meant for pain relief, sleep, and post-chemo care. Browse our trusted RSO products


Read the latest update on cannabis and breast cancer care at: cancer.gov

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