THC and CBD are both cannabinoids from the cannabis plant. THC causes the high. CBD does not. In Florida, hemp products must stay at or below 0.3% total delta-9 THC, and the FDA has approved only one CBD drug, for certain seizures.
That makes THC vs CBD a question of effect, law, and quality, not just chemistry. Below you will find a side-by-side table, what the research says, Florida and federal rules, how drug tests work, and how to choose. Growing In Health Florida in Naples, FL 34119 can show you lab reports in person. Hemp products are not medicines, so ask your healthcare provider first if you take medication.
• THC: The compound that makes you feel high.
• CBD: Non-intoxicating. It does not cause a high.
• Same formula, different shape: Both are C21H30O2, but the atoms are arranged differently.
• FDA: Approved one CBD drug (Epidiolex) and THC-based drugs for nausea and appetite loss. It has not approved other CBD products.
• Florida: Hemp-derived products are legal for adults 21+ within hemp rules. Marijuana-derived THC is medical-only.
THC causes a high, and CBD does not; the table compares them side by side.
| Feature | THC | CBD |
| Full name | Delta-9-tetrahydrocannabinol | Cannabidiol |
| Causes a high? | Yes | No |
| Chemical formula | C21H30O2 | C21H30O2 |
| FDA-approved drugs | Dronabinol and nabilone (synthetic, for nausea and appetite loss) | Epidiolex (for certain seizure disorders) |
| Common side effects | Dizziness, sleepiness, impaired driving | Drowsiness, changes in alertness, stomach upset |
| Safety flags | Higher risk of psychosis in people predisposed to it | The FDA says it can cause liver injury and affect other drugs |
| Drug test | Can cause a positive result | Full-spectrum products can contain trace THC |
| Florida hemp limit | 0.3% total delta-9 THC or less | No limit on CBD itself |
THC (tetrahydrocannabinol) is the main cannabis compound that changes your mental state.
THC (tetrahydrocannabinol) is the main compound in cannabis that changes your mental state. It acts on receptors in the brain, which is why it causes the high. THC can also cause dizziness, sleepiness, and slower reactions. Driving after use raises crash risk. People with a risk of psychosis should avoid it. Learn more about delta-9 THC.
CBD (cannabidiol) is a cannabinoid that does not cause a high, and it comes from hemp and other cannabis plants.
CBD (cannabidiol) is a cannabinoid that does not cause a high. It comes from hemp and other cannabis plants. Our guide explains what CBD is in more detail. CBD can still affect your body. Possible effects include drowsiness and stomach upset. Quality also varies, because over-the-counter products can contain more or less CBD than the label says.
The FDA says CBD can cause liver injury, drowsiness, and mood changes, and can interact with other drugs.
THC and CBD share one chemical formula, but their atoms are arranged differently, so they act differently in the body.
Both compounds have the same formula, C21H30O2. The difference is how the atoms are arranged. THC has a closed ring, and CBD has an open one. That small change decides how each one acts in the body. THC acts strongly on the brain’s CB1 receptors, which causes the high. CBD does not work the same way, so it does not cause intoxication. For other cannabinoids such as CBN, CBG and CBC, see our cannabinoid glossary.
The FDA has approved Epidiolex, a CBD drug for certain seizures, plus synthetic THC-like drugs for nausea and appetite loss.
The FDA has approved a small number of cannabis-related drugs:
• Epidiolex (CBD): for seizures linked to Lennox-Gastaut or Dravet syndrome.
• Dronabinol and nabilone (THC-like, synthetic): for nausea from chemotherapy, and for appetite loss in AIDS with dronabinol.
The FDA says it has not approved any other cannabis, cannabis-derived, or CBD products. Hemp and CBD products in stores are not drugs and are not approved to treat any condition. See the FDA list of approved cannabis drugs. These medicines are prescription only.
Research is still early, and for most uses the evidence is limited.
Research is still early. According to the National Center for Complementary and Integrative Health:
• Pain: A 2018 review found a small benefit that may be too minor to matter to patients.
• Anxiety: Evidence is limited to small studies.
• Sleep: Some studies report better sleep, but it is unclear why.
• Nausea: THC-like drugs helped with chemotherapy-related nausea, with more dizziness and sleepiness.
A December 2025 JAMA review reached a similar view: apart from approved uses such as seizure disorders, chemotherapy nausea, and AIDS-related appetite loss, evidence for chronic pain, anxiety, and insomnia is inconclusive or lacking. It also linked high-potency cannabis in teens to more psychotic symptoms.
Talk with your healthcare provider before using either compound, especially if you take medication.
It depends on the source: hemp-derived products are legal within limits, and marijuana-derived THC is medical-only.
Florida Statute 581.217 allows hemp with no more than 0.3% total delta-9 THC. Hemp extract for eating, drinking or inhaling can be sold only to adults 21 and older, with a batch lab report. Marijuana-derived THC is legal only through the state medical program. Recreational marijuana is still illegal.
Most new federal hemp-THC restrictions are now scheduled for December 11, 2026, after Congress delayed them from November 12. Foley Hoag reported in September 2026 that the carve-out for synthetic cannabinoids keeps the November 12 date, and that the full restrictions take effect December 11 unless Congress acts again. The Congressional Research Service says the new definition counts total THC, including THCA, and caps final products at 0.4 mg of total THC and similar cannabinoids per container. Dates can change, so check before you buy. This is not legal advice.
Choose by your goal and your drug-testing situation, and always check the batch lab report.
Start with your goal and your drug-testing situation:
• No THC at all or drug tested: choose CBD isolate with a batch lab report that shows THC as not detected.
• Plant compounds with minimal THC: broad-spectrum CBD.
• Whole-plant profile and not drug tested: full-spectrum CBD.
Our guide to full spectrum vs broad spectrum vs isolate explains how to read the lab report for each type.
THC can cause a positive drug test, and full-spectrum CBD can contain enough trace THC to do the same.
Isolate has the lowest THC exposure, but no CBD product can guarantee a negative test. If you are tested for work, sports, or probation, ask the test provider about their policy, choose a product with a batch lab report showing THC as not detected, and keep the receipt and lab report. When in doubt, skip hemp products until you have an answer.
Anyone who takes medication, is pregnant or nursing, has heart or mental health conditions, or drives should talk with a clinician first. The 2025 JAMA review advises clinicians to screen for heart disease and psychotic disorders and to check drug interactions before recommending THC products. Keep every hemp product away from children and pets, avoid driving until you know how you react, and never mix with alcohol without medical advice.
Growing In Health Florida at 7211 Vanderbilt Beach Rd #3, Naples, FL 34119 is a CBD and hemp boutique where staff can show you lab reports and explain labels.
Growing in Health Florida is a CBD and hemp boutique in Naples. Our staff can show you lab reports and explain labels. Browse the CBD products on our Naples shelves.
• Address: 7211 Vanderbilt Beach Rd #3, Naples, FL 34119
• Phone or text: (239) 331-4807
• Hours: Monday to Saturday, 10 a.m. to 8 p.m.; Sunday, noon to 5 p.m.
The main difference is that THC causes a high and CBD does not. They share the same chemical formula, but their atoms are arranged differently, so they act differently in the body. THC acts strongly on the brain’s CB1 receptors, while CBD does not cause intoxication.
CBD does not cause the high that THC does. It can still affect alertness and cause drowsiness, so use caution before driving or operating machinery. The FDA also says CBD can affect the liver and interact with other drugs, so talk with your healthcare provider first.
It can, because full-spectrum products may contain trace THC, which can trigger a positive result. Isolate has the lowest THC exposure, but no CBD product can guarantee a negative test. Ask the test provider about their policy and check the batch lab report.
Many products combine them, such as full-spectrum CBD. Combining them can change how each one feels. Ask your healthcare provider first, especially if you take other medicines, and read the label and lab report so you know exactly how much THC the product contains.
Yes, hemp-derived CBD is legal in Florida when it follows the hemp rules, including a batch lab report and a 0.3% total delta-9 THC limit. Ingestible and inhalable hemp extract can be sold only to adults 21 and older. Federal rules are also changing in 2026.
Marijuana-derived THC is legal only through the state medical program, with physician certification. Hemp-derived products must stay at or below 0.3% total delta-9 THC. Rules for hemp are scheduled to change on December 11, 2026, so check current rules before you buy.
Growing In Health Florida, 7211 Vanderbilt Beach Rd #3, Naples, FL 34119, can show you lab reports and explain labels. We are open Monday to Saturday from 10 a.m. to 8 p.m. and Sunday from noon to 5 p.m. Bring a valid ID.
THC causes a high and CBD does not, and the right choice depends on your goals, your drug-testing situation, and the law. Check the batch lab report, stay within Florida’s hemp rules, and talk with your healthcare provider first. To ask us anything, call (239) 331-4807 or visit our shop in Naples, FL 34119. We are happy to walk you through any label and lab report, answer your questions without pressure, and help you compare your options so you can choose with confidence.
