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RSO vs FECO: What Kentucky Patients Need to Know

  • Isabella Romo
  • Sep 18
  • 4 min read

Updated: Sep 22

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If you’re a medical marijuana patient in Kentucky, or thinking about becoming one, you may have heard of RSO (Rick Simpson Oil) and FECO (Full-Extract Marijuana Oil). These oils are considered some of the strongest and most therapeutic marijuana products available today. 

But what exactly are they, how do they differ, and what should patients in Kentucky know before trying them?


What Are RSO and FECO?

RSO is a thick, dark marijuana extract named after its creator, Rick Simpson. It is highly concentrated and contains the full spectrum of compounds found in the marijuana plant, including THC, CBD, terpenes, and flavonoids.


FECO is a broader term that refers to any full-spectrum marijuana oil that preserves the plant’s natural compounds. While all RSO is technically FECO, not all FECO is RSO. Different extraction methods and techniques can produce FECO with varying textures, flavors, and effects.


How They’re Made

The main difference between RSO and FECO comes down to extraction:

  • RSO is traditionally made with strong solvents that strip the plant of its active ingredients, leaving behind a concentrated, sticky oil.

  • FECO is often made with gentler, food-grade solvents that better preserve delicate compounds like terpenes, giving the oil a more complex chemical profile.


Both result in highly potent oils, but the method of extraction influences taste, aroma, and potentially how the oil feels when used.


Effects and Benefits

Patients often turn to RSO or FECO because these oils contain the full array of compounds found in marijuana, working together in what’s known as the entourage effect. This synergy can provide powerful relief for:

  • Chronic pain

  • Inflammation

  • Neurological conditions

  • Sleep problems

  • Appetite support

  • Severe or treatment-resistant symptoms


Because these oils are so concentrated, dosing must be handled carefully. In states with active marijuana programs, many patients start with a dose the size of a grain of rice and gradually increase as tolerated. 


At Kentucky Marijuana Card, our doctors can help guide you through product choices and dosing, offering personalized recommendations based on your conditions and ongoing support so you feel confident and safe as you begin using RSO or FECO. The dispensary staff will also be knowledgeable in all products and strains they offer, so they can help as well.


Safety and Legality in Kentucky

It’s important to remember that concentrated oils like RSO and FECO will only be legally available to patients with a valid Kentucky medical marijuana card. Without certification, possessing these oils can put you at legal risk. Once dispensaries open later this year, these products will only be sold to registered patients. Since the state takes up to 30 days to process applications, now is the time to get your card so you’re ready to purchase legally as soon as doors open.


Since these extracts are so strong, side effects like dizziness, anxiety, or fatigue are possible if taken in high doses. Always start low and increase slowly under medical guidance. With a marijuana card in hand, the oil you choose will be lab-tested and purchased from a licensed dispensary, ensuring it’s safe and free of contaminants.


How Kentucky Marijuana Card Can Help

At Kentucky Marijuana Card, our mission is to help patients across the state get safe, legal access to medical marijuana products, including powerful options like RSO and FECO. We make the process simple by:

  • Connecting you with our compassionate, state-certified physicians – Our doctors take the time to understand your medical history, symptoms, and goals so they can make personalized recommendations tailored to your needs.

  • Guiding you through the process of obtaining your marijuana card – From your initial consultation to submitting the required paperwork to the state, our team makes every step as smooth and stress-free as possible.

  • Providing education on safe use and dosing of different marijuana products – Whether you’re curious about oils like RSO and FECO, edibles, or flower, our team explains your options in plain language and can make recommendations to help you use products safely and effectively.

  • Offering ongoing patient support – Our patient support team is available to answer questions even after your appointment, making sure you always feel confident and supported on your treatment journey.

  • Keeping you informed with resources like our blogs and newsletter – We share the latest updates on Kentucky marijuana laws, medical research, and patient tips so you’re always empowered with accurate, up-to-date information.


Final Thoughts

RSO and FECO are among the strongest marijuana oils available, offering full-spectrum relief when other methods may not be enough. Whether you’re managing chronic pain, inflammation, or another qualifying condition, these oils can be a powerful tool in your treatment plan.


If you’re interested in learning more or getting started with your own Kentucky medical marijuana card, we are here to guide you every step of the way!


Get Access to Medical Marijuana in Kentucky

Medical marijuana is almost here, Kentucky, so get your marijuana card now!


You can schedule your appointment to see our doctor at our Louisville or Lexington office. Schedule your appointment today to get your marijuana card and be the first to access dispensaries as soon as they open!


Don’t wait—secure your spot and start your journey toward relief. Subscribe to our newsletter for more updates on the program and dispensaries!

 


Doctors Who Care.

Relief You Can Trust.


At Kentucky Marijuana Card, we’re here to make the process easy and stress-free. Our team is dedicated to helping you unlock the full benefits of Kentucky’s medical marijuana program while improving your overall quality of life.


Don’t wait to start feeling better. Call us at (833) 781-6360 or schedule your evaluation today, and take advantage of the many benefits a medical card has to offer!


Want the latest insights on RSO and FECO and what’s next for Kentucky’s program? Sign up for our newsletter!

 
 
 

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