Understanding FECO vs. RSO
Unlike RSO (Rick Simpson Oil), which is commonly extracted using isopropyl alcohol, FECO is made using food-grade ethanol. This results in a cleaner, safer extract with full-spectrum benefits.
Delivery Methods & Timing
FECO can be administered in several ways, each with a different onset time and duration:
- Sublingual (under the tongue): Effects in 15–30 minutes, lasting 4–6 hours
- Swallowed (capsule or mixed with food): Effects in 45–90 minutes, lasting 6–8 hours
- Topical (skin application): Localized relief; effects depend on condition
- Suppository: Often used in high-dose protocols; rapid systemic absorption
FECO Dosage Table
| Condition | Suggested Starting Dose | Frequency | Delivery Method |
|---|---|---|---|
| Pain | 1–2 mg THC | 2x daily | Sublingual or oral |
| Seizures | 0.5–1 mg THC + 2–5 mg CBD | 2–3x daily | Capsule or oral |
| Anxiety | 1 mg THC + 5 mg CBD | 1–2x daily | Sublingual |
| Sleep | 2–3 mg THC | 1x before bed | Oral |
| Inflammation | 5–10 mg CBD | 1–2x daily | Topical or oral |
What if I Take Too Much?
Stay calm. FECO cannot cause a fatal overdose. Common symptoms of overconsumption include drowsiness, anxiety, or nausea. Drink water, eat a light snack, and rest. Effects typically fade within hours.
Tips for Safe Use
- Start low and go slow. Increase only after evaluating effects for 3–5 days.
- Consult with your provider if on blood thinners, SSRIs, or other medications.
- Store safely—especially during summer. Avoid direct heat. Keep refrigerated or in a cool, dark place. Keep away from children and pets.
- Track effects in a journal. Download our FECO dosing journal here.
Patient Story: Lee’s Journey
Lee began using FECO in 2018 for epilepsy. With a microdosed CBD/THC ratio, he experienced a 70% reduction in seizures within three months. Four years later, he remains seizure-free with ongoing FECO support and regular consultations with King Harvest specialists.
FAQ
How long until I feel effects?
Sublingual: 15–30 minutes. Oral: 45–90 minutes. Topical varies. Suppositories: 10–20 minutes.
Can I give FECO to my pet?
Yes, but follow a pet-specific dosage: typically 0.1 mg THC per 10 lbs body weight. Always consult a vet or see our FECO for Pets guide.
Should I use oil or capsules?
Oil allows flexible dosing. Capsules are convenient and pre-measured. Beginners often start with oil.
Why King Harvest?
We’ve helped thousands of patients since 2014 using customized, lab-tested FECO protocols. Our extracts are California-grown, third-party tested, and tailored for real-world healing. View lab results.
Medical Disclaimer
This content is for educational purposes only. It is not medical advice. Consult your provider before starting cannabis therapy, especially if you take medications or have chronic conditions.

