Knowra Drug overdose Drug overdose Drug overdose is a harmful or potentially fatal condition caused by exposure to more of a drug than the body can safely tolerate. It can result from prescription medicines, nonmedical drugs, or combinations of substances.
Toxic dose : An amount of a substance that can cause harmful effects in a particular exposure context. Overdose occurs when exposure exceeds what the body can tolerate, though toxicity varies by person and circumstance.
Poison control center : A service that provides expert guidance on suspected poisonings and toxic exposures. Specialists can advise on immediate steps after a suspected overdose or medication error.
Fentanyl : A potent synthetic opioid used medically for severe pain and present in illicit drug supplies. Illicit fentanyl exposure contributes to many fatal opioid overdoses.
Hypoxic brain injury : Brain damage caused by insufficient oxygen reaching brain tissue. Prolonged breathing failure or cardiac arrest during overdose can deprive the brain of oxygen.
Pharmacokinetics : The study of how a body absorbs, distributes, metabolizes, and eliminates a drug. These processes determine how quickly a drug accumulates and how long toxic effects persist.
Emergency medical services : Prehospital care and transport provided by trained responders during medical emergencies. Responders can support breathing, administer naloxone, and transport a person for urgent care.
Acetaminophen poisoning : Liver injury caused by exposure to excessive acetaminophen, sometimes after initially mild symptoms. This common medication overdose can become severe before obvious signs of liver damage appear.
Overdose prevention : Measures that reduce the likelihood or severity of drug overdose and its consequences. Prevention combines safer prescribing, treatment access, naloxone, and community-level interventions.
Opioid overdose : A toxic reaction to opioids that can suppress breathing and cause unconsciousness or death. Opioids illustrate how one drug class can cause overdose through respiratory depression.
Activated charcoal : A treatment that binds some substances in the gastrointestinal tract to reduce their absorption. Clinicians may use it in selected poisonings; it is not appropriate for every overdose.
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