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1. to administer an excessive dose.
2. an excessive dose.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


An excessive dose, especially of a narcotic.
v. (ō′vər-dōs′) over·dosed, over·dosing, over·doses
To take an overdose.
To administer too large a dose or too many doses to.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.


Substance abuse Consumption of a therapeutic agent, drug, or narcotic, in excess of that required to produce the desired effects; overdoses are either accidental or suicidal and many agents have their own relatvely characteristic clinical, diagnostic, and therapeutic 'fingerprint'. See 'Designer' drugs, Heroin, 'Ice. ', Withdrawal.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.


A quantity of a drug well in excess of the recommended dose.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

Patient discussion about overdose

Q. so, like I know you can die of a drug overdose, but can you die of an alcohol overdose as well?

A. of course you can!!! you better not try to prove me wrong on this one... each one of us has a different threshold of how much is just a bit too much for him so you shouldn't get to exaggerated amounts cause you can't tell hoe sensitive you are to it.

Q. My husband takes Zocor (20mg) for his hyperlipidemia. by mistake he took 3 pills (60mg). What to do? My husband suffers from high blood lipids and he is treated with Zocor (Simvastatin). he should take one pill of 20 mg per day. By accident he took 3 pills (60mg) in one day. what to do?

A. You need to call your GP. Zocor doses are between 20-80 mg but maybe your husband has other problems (mainly in his kidneys) that will interfere with the normal way of cleaning the body from the drug.
Zocor overdose symptoms will be myalgia and red urine (in a severe overdose) if your husband have one of those symptoms go to the ER as soon as possible.

Q. Is drinking too much water harmful? Is there a condition like “water overdose”?

A. Drinking more water then you are used to is very good for you. But of course if you over do it it’s damaging. Drinking way too much will make you urinate more, this means you will also loose vital minerals in the urine like potassium and sodium. This can even lead to death.


More discussions about overdose
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References in periodicals archive ?
In the overdose deaths involving fentanyl, 63% also involved benzodiazepines like Xanax, cocaine or methamphetamine, the researchers found.
Drug overdose deaths and opioid-involved deaths continue to be high in Kane County.
NIDA said an opioid overdose can be rapidly reversed with naloxone when given right away.
"The pattern in drug overdose mortality rates by urban and rural counties has varied over time," the authors write.
Currently, we represent over one hundred thousand Massachusetts and US residents that are impacted by the current heroin, fentanyl, opioid and overdose epidemic.
In October 1991, 3-methylfentanyl was identified in 16 fatal drug overdoses in Allegheny County, Pennsylvania, contributing to a 4-fold increase in overdose deaths compared to the previous year.
* Heroin was the single most frequent drug associated with workplace overdose deaths.
The acquisition forms part of a wider growth strategy for Overdose Digital, including plans for further European acquisitions, as well as the opening of a US office later in the year.
We want to be able to minimize patients' pain and reduce their risk for overdose," explained Jason Glanz, who co-authored the study.
(7,8) Our study investigates the effect of GS policy, while accounting for other changes in harm reduction and substance use policies, on overdose deaths for several categories of drugs including all, prescription, and illicit drug poisonings.
The rise in drug overdose deaths and suicides in 2017 were main factors contributing to the ongoing decline in life expectancy in the US since 2014.
The (https://www.verywellmind.com/can-i-overdose-on-marijuana-4140975) signs and symptoms of marijuana overdose can include uncontrollable shaking or seizures, a sudden spike in blood pressure coupled by a headache, palpitations and chest pain and pale skin color.