Better Than Ibuprofen (According to Mice With Broken Legs)
The CBG pain research that’s too compelling to ignore—and too early to promise. The Broken Leg Study In 2023, researchers at Penn State College of Medicine broke the legs of laboratory mice. Specifically, they fractured their tibias—the shin bone. Then they gave some mice ibuprofen. Others got CBG, a non-psychoactive cannabinoid from cannabis. And they waited to see what would happen. The pain relief results? CBG matched ibuprofen perfectly. Both groups showed the same reduction in pain sensitivity—to pressure, to cold, to heat. Equal analgesic effect. But then something unexpected happened. When the researchers examined the healed bones weeks later, they found a stark difference: The ibuprofen group’s bones healed slower and weaker. The CBG group’s bones healed faster and stronger—with higher bone density, better mineralization, and greater mechanical strength. CBG didn’t just match ibuprofen for pain relief. It beat it. Here’s the problem: Those were mice, not humans. And every single impressive study on CBG for pain—and there are several now—has been conducted in rodents. Not a single human clinical trial exists yet for CBG and pain. So we’re left with a question: Is CBG actually better than ibuprofen for pain and healing? Or are we getting excited about mouse data that won’t translate? This article will show you: Let’s start with that broken leg study, because it’s the foundation of everything else. Pain Relief Without the Trade-Off Study Details: Published in the Journal of Bone and Mineral Research in 2023—a high-impact, peer-reviewed journal—this controlled experiment came from Penn State College of Medicine. Mice with fractured tibias were divided into groups: some received CBG, some received NSAID pain medication (similar to ibuprofen), and some received no treatment as controls. The researchers then measured two things: pain levels during healing, and the quality of the healed bone afterward. Pain Relief Results – CBG Matched NSAIDs: The researchers measured pain sensitivity using three different tests: Mechanical sensitivity: How much pressure could the mice tolerate on their broken leg? Cold sensitivity: How did they react to cold stimulation? Heat sensitivity: How quickly did they pull away from heat? Normally, a fractured bone makes you hypersensitive to all three. The area becomes painful to touch, painful in cold weather, painful with any temperature change. CBG normalized all three pain responses—just as effectively as NSAIDs. The mice treated with CBG showed pain sensitivity levels comparable to mice with no injury at all. Same as the ibuprofen-like NSAID group. In pain relief terms: tie game. Healing Results – CBG Won Decisively: But when the researchers examined the healed bones using micro-CT scans and mechanical testing, they found dramatic differences. CBG-treated mice had: NSAID-treated mice had: Think about that for a second. Both groups got equal pain relief. But one group healed properly. The other group’s healing was compromised. Why NSAIDs Impair Healing (And CBG Doesn’t): NSAIDs work by blocking inflammation—specifically by inhibiting COX enzymes that produce inflammatory prostaglandins. The problem? You need some inflammation to heal. The inflammatory phase of bone healing recruits immune cells and growth factors that trigger tissue repair. Block it completely, and you slow down the whole process. NSAIDs are so effective at blocking inflammation that they actually impair fracture healing, delay surgical recovery, and can interfere with tissue repair throughout the body. Orthopedic surgeons know this. They often tell patients to avoid NSAIDs during the first few weeks of bone healing—right when pain is worst. CBG, on the other hand, modulates inflammation differently. Instead of completely blocking the inflammatory cascade, CBG appears to dampen excessive inflammation while allowing the necessary inflammatory signals for healing to proceed. It takes the edge off pain without derailing the repair process. And somehow—through mechanisms the researchers are still investigating—it actually accelerates healing beyond normal rates. The Clinical Implications (If This Translates to Humans): Think about what this could mean: Fracture patients could manage pain without compromising bone healing. No more choosing between pain relief and optimal recovery. Post-surgical pain could be treated without slowing recovery. Patients could take something for pain without sabotaging the healing their surgery was meant to achieve. Sports injuries—tendon strains, ligament damage, muscle tears—might heal faster while pain is controlled. Athletes could return to play sooner. Chronic joint conditions might get both symptom relief and disease modification. Not just masking pain, but actually improving the underlying tissue health. Currently, doctors face a dilemma: Give NSAIDs for pain, knowing they slow healing. Or withhold effective pain relief to optimize healing. Patients suffer either way. CBG might eliminate that trade-off. The Massive Caveat: This was in mice. Mice with tiny fractured tibias, not humans with complex injuries. The dose used was high—scaled to human weight, it would be hundreds of milligrams. And bone healing in rodents doesn’t perfectly mirror bone healing in humans. We have different healing timelines, different bone structures, different metabolic responses. Mouse bones heal in weeks. Human bones take months. Will these results translate? We genuinely don’t know. But the study was rigorous. Peer-reviewed. Published in a respected journal. And the findings were striking enough that pain researchers took notice. Which brings us to the next question: Is the fracture study a fluke, or is there a pattern of CBG outperforming conventional pain treatments in preclinical research? The Nerve Damage Evidence The Broken Leg Study Wasn’t Alone: While the fracture study grabbed headlines, quieter research was showing CBG might excel at a different type of pain—one that’s notoriously difficult to treat. Neuropathic pain. This is pain from nerve damage: sciatica, diabetic neuropathy, chemotherapy-induced nerve pain, post-shingles pain. The kind that standard painkillers often fail to touch. The kind where patients cycle through gabapentin, Lyrica, antidepressants, and opioids—all with limited success and significant side effects. Study #1: The Chemotherapy Pain Model (2022) Researchers gave mice cisplatin—a chemotherapy drug known to cause severe peripheral neuropathy in cancer patients. It’s a devastating side effect. Patients finish chemotherapy cancer-free, but they’re left with permanent nerve damage. Numbness. Tingling. Burning pain. Hypersensitivity. The mice developed the hallmark signs: hypersensitivity to touch (light pressure