什麼是卡痛 (kratom) ？ 
Kratom (Mitragyna speciosa) is a tropical tree native to Southeast Asia. When the leaves are consumed it produces stimulant effects in low doses, and sedative effects in high doses. Some people take kratom, against warnings, to reduce opioid cravings or treat pain. Others take it recreationally, believing it helps improve their mood.
Kratom contains a variety of chemicals. The two major psychoactive ingredients are mitragynine and 7-hydroxymytragynine (7-OH). Kratom is mostly abused by ingesting it in the form of a tablet, capsule, or extract. Some individuals ingest it as a tea or simply chew the leaf. Laboratory-synthesized 7-OH is being sold and added to kratom products exposing users to concentrations of psychoactive ingredients that are unexpected and harmful.
Kratom was first introduced into the US in the late 1990s and for years its use was very limited. In recent years kratom use has become much more common, possibly because of the opioid epidemic and people trying to use kratom to reduce their dependence on opioids. Kratom is easily available and often sold in gas stations, smoke/vape shops, corner stores, and online. According to an analysis of 2015-2025 data from the National Poison Data System (NPDS), the U.S. Centers for Disease Control and Prevention (CDC) found that kratom-related exposures reported to NPDS increased by approximately 1,200%, reaching record levels in 2025.
A 2019 study on Poison Control Center calls related to kratom found they’ve become much more common in the past few years. In 2011 Poison Control Centers received 13 calls about kratom. This rose to 682 in 2017, and two-thirds of the 1807 kratom-related calls between 2011–2017 happened in 2016 and 2017.
卡痛是否安全？
The Food and Drug Administration (FDA) has warned people not to take kratom because of safety concerns and the risk of addiction. The sale of kratom is not approved by the FDA meaning the FDA has not:
- determined kratom to be safe or effective.
- inspected products to make sure they contain the ingredients they’re supposed to.
- determined the concentration of the active ingredients is correct.
- determined if the product is contaminated.
Since kratom is not approved by the FDA; different products can differ in strength and could have unknown contaminants. Companies selling kratom don’t have to follow safe manufacturing regulations, and in 2018 there was an outbreak caused by Salmonella bacteria in kratom that made people sick in 41 states.
People can overdose on kratom, and it can interact with other medications, alcohol, or recreational drugs in ways that can be dangerous. Kratom has been linked to drug-associated deaths. In most cases kratom was taken along with other drugs, but in a few cases, kratom was the only drug used. Kratom can be addictive, and babies born to mothers who use kratom sometimes have to be treated for opioid withdrawal symptoms.
卡痛是否合法？
Some states or localities have laws against the sale or possession of kratom. In Virginia, it is illegal to sell kratom to people under the age of 21. As of November 2026, kratom products must include a label listing all the ingredients and a warning about potential dependency and opioid-like withdrawal. The law also bans the sale of products containing 7-OH.
聯邦政府是否提出了保護人類健康的建議？
There are currently no federal laws regulating kratom, although the FDA has used its authority to regulate unapproved drugs and unapproved dietary additives to restrict the import of kratom. In July 2026, the U.S. Drug Enforcement Administration (DEA) filed its intent to temporarily place 7-OH into Schedule 1 of the Controlled Substances Act (CSA).
卡痛的副作用有哪些？
Kratom is a drug and can have side effects that can be dangerous. Stimulant side-effects occur at low doses while sedative side-effects occur at higher doses. Kratom causes loss of appetite, anorexia, insomnia, tremors, hallucinations, confusion, and rapid heartbeat. People often report feeling itchy after taking it. It can cause nausea and vomiting. At high doses kratom can cause seizures. People who take kratom regularly can develop liver injury.
我一直在使用卡痛，我該怎麼辦？
Tell your doctor. Even if you don’t plan to stop taking kratom you should talk to your doctor about potential interactions with other medications or drugs or alcohol and the possibility of becoming dependent on kratom. Women who are pregnant, planning to become pregnant, or nursing should stop taking kratom to protect their baby from exposure. Like drugs, kratom should be stored out of the reach of children.
如果您或其他人（尤其是兒童）誤食了卡痛，請撥打毒物管制中心熱線 1-800-222-1222。如果患者出現嚴重的副作用，請撥打 911。
What are resources to treat addiction?
- Home – FindTreatment.gov to locate treatment for substance use disorders.
- Virginia Dept of Behavioral Health and Human Services:
- Virginia Dept of Health:
- U.S. Dept of Health and Human Services:
- U.S. Centers for Disease Control and Prevention:
我可以在哪裡獲得更多資訊？
已更新：2026
