Navigation Links
Psychiatric Meds in Water Supply May Alter Fish Behavior
Date:2/15/2013

FRIDAY, Feb. 15 (HealthDay News) -- Small amounts of mood-altering drugs used to treat psychiatric disorders that are making their way into rivers and streams may be changing the behavior of some fish, a new study suggests.

Researchers in Sweden found exposure to the anti-anxiety drug, Oxazepam, caused fish to become bolder, less social and eat faster.

Reporting in the Feb. 15 issue of Science, the researchers explained that trace amounts of the drug and other medications end up in waterways downstream of wastewater treatment plants, after being excreted by people. The team worries that exposure of wildlife to pharmaceuticals such as Oxazepam could eventually lead to unexpected ecological and evolutionary consequences.

In the study, the researchers gave wild European perch a dose of Oxazepam that was similar to the amounts of the drug found in Sweden's waterways. They found that even trace amounts of the mood-altering medication seemed to alter the behavior and foraging rate of the wild perch.

"Normally, perch are shy and hunt in schools. This is a known strategy for survival and growth. But those who swim in Oxazepam became considerably bolder," lead researcher Tomas Brodin, an ecologist at Umea University, said in a university news release.

He said that perch exposed to Oxazepam became more independent, leaving the safety of schools to forage on their own - potentially exposing themselves to being eaten by other fish.

"In contrast, unexposed fish stayed hidden in their refuge," Brodin said in a news release from Science.

Since the fish also ate their food more quickly, the researchers pointed out, this behavior could change the composition of species in the water. This unbalance, they added, could alter ecological events over time, such as the blooming of algae.

Exposure to Oxazepam also made the fish less social, making them easier prey for potential predators, the researchers noted. "Perch that were exposed to Oxazepam lost interest in hanging out with the group, and some even stayed as far away from the group as possible," said Brodin.

The study's authors suggested the wild fish in Sweden rivers and streams may be experiencing similar changes since the concentrations of the drug found in their muscles are similar to the drug concentration in the fish examined in the study. They noted wild fish are exposed to other drugs in waterways as well, which could compound the effects on their behavior and the ecosystem.

The researchers said more studies are needed to investigate the effects of drugs on wildlife and ecosystems.

"The solution to this problem isn't to stop medicating people who are ill but to try to develop sewage treatment plants that can capture environmentally hazardous drugs," study co-author Jerker Fick, also of Umea University, said in a university news release.

More information

Find out more about psychiatric medications at the U.S. National Institute of Mental Health.

-- Mary Elizabeth Dallas

SOURCES: new releases, Science and Umea University, Feb. 14, 2013


'/>"/>
Copyright©2012 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Scopolamine: An old drug with new psychiatric applications
2. Family practice offers genetic tests to predict effective psychiatric meds, a CAMH study
3. Frontiers publishes systematic review on the effects of yoga on major psychiatric disorders
4. Study examines link between incarceration and psychiatric disorders
5. Protecting psychiatric medical records puts patients at risk of hospitalization
6. For Psychiatric Patients, Cancer Is Often Spotted Too Late
7. Children with autism arrive at emergency room for psychiatric crisis 9 times more than peers
8. Childless women with fertility problems at higher risk of hospitalization for psychiatric disorders
9. Bias found in mental health drug research presented at major psychiatric meeting
10. Psychiatric Patients Often Wait Nearly 12 Hours in ER
11. Symptomatic behaviour in childhood strongly predicts psychiatric treatment as a young adult
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Psychiatric Meds in Water Supply May Alter Fish Behavior
(Date:10/13/2017)... ... October 13, 2017 , ... Global Healthcare Management’s 4th ... Park in Milford, NJ. This free event, sponsored by Global Healthcare Management’s CEO, ... The fun run is geared towards children of all ages; it is a non-competitive, ...
(Date:10/13/2017)... ... 13, 2017 , ... “The Journey: From the Mountains to the Mission Field”: ... souls in the Philippines. “The Journey: From the Mountains to the Mission Field” is ... Bible. She has taught all ages and currently teaches a class of ladies at ...
(Date:10/12/2017)... Orleans, LA (PRWEB) , ... October 12, 2017 , ... ... centers in the U.S., announced today its plans to open a flagship location in ... will occupy the former Rooms To Go store next to Office Depot in the ...
(Date:10/12/2017)... ... October 12, 2017 , ... Asante, a nationally recognized ... have expanded their existing home health joint venture through an agreement, effective October ... a joint venture home health company with Asante, delivering clinically integrated care, for ...
(Date:10/12/2017)... ... 12, 2017 , ... Leading pediatric oncology experts at Children’s National Health ... Congress of the International Society of Paediatric Oncology (SIOP) Oct. 12-15. Chaired ... Cancer and Blood Disorders at Children’s National, and Stephen P. Hunger, M.D., Chief ...
Breaking Medicine News(10 mins):
(Date:9/27/2017)...  Commended for their devotion to personalized service, SMP Pharmacy ... one in the South Florida Business Journal,s 50 Fastest-Growing Companies, ... list, the national specialty pharmacy has found its niche.  To ... soon be honored by SFBJ as the 2017 Power Leader ... to receive his award in October, Bardisa said of the ...
(Date:9/25/2017)... --  Montrium , an industry leader in powerful ... Trial Master Files & Inspection Readiness Conference ( ... Services has selected eTMF Connect to ... a leading European contract research organization (CRO), will ... enable greater collaboration with sponsors, improve compliance and ...
(Date:9/23/2017)... 22, 2017 Janssen Biotech, Inc. (Janssen) announced ... from the U.S. Food and Drug Administration (FDA) for ... for the treatment of moderately to severely active rheumatoid ... data are needed to further evaluate the safety of ... RA. "We ...
Breaking Medicine Technology: