Five people had to be taken to hospital after taking drugs that may have been laced with something at a weekend gathering.

Emergency crews were called to a home in the area of MacIntosh Street and Como Lake Avenue in Coquitlam, shortly before 11 p.m. on Sunday.

RCMP officers, who were called to assist firefighters and paramedics, told CTV News that they arrived to find five people unconscious.

Each of them was revived with Naloxone – a powerful medication that reverses the effects of opioids like fentanyl - and regained consciousness before being transferred to hospital. 

All five individuals were released later on Monday. 

Police said it is believed the patients overdosed after using recreational drugs, and that they admitted to using cocaine and weed. 

All five experienced the same symptoms at once, and officers are investigating whether the drugs could have been laced with something stronger.

Investigators were unable to get a search warrant, and will never know for certain what was in their systems. 

With first responders facing fentanyl overdoses on a daily bases, a growing number are equipped with life-saving Naloxone kits, which is sold under the brand name Narcan. The kits became available over the counter this spring, and doctors want more people to have them. 

Each dose costs $20-25, with pharmacists recommending two on hand in case one isn't enough. As it's an over-the-counter product, pharmacists don't require personal information to sell Naloxone.

Pharmacists provide free training – and point out it’s not possible to treat yourself. 

With files from CTV Vancouver’s Penny Daflos