The word "heroin" is correct and usable in written English.
You can use it to refer to a highly addictive and illegal drug when talking about its use and recreational or medical effects. Example sentence: Heroin use has become a serious public health issue in recent years.
Guzmán's Sinaloa cartel is the biggest trafficking organisation in Mexico, with a long tradition of moving South American cocaine to insatiable markets in US and other parts of the world, as well as locally produced marijuana, heroin and methamphetamines.
Written by Frank Deasy, the BBC's four-part series is set in 1982 and traces the formative years of the Edinburgh's heroin explosion.
The jury heard further details about what the police raids uncovered inside Roberts' home, including nine packets of cannabis, 16g of crack cocaine, a small amount of heroin and just over £500 in cash.
He knows there are darker days ahead, even if more American tour buses pull up at Moneygall's main street looking for Ollie Hayes' pub or more British holidaymakers take a trip to the Garden of Remembrance, avoiding the heroin addicts who use it as a shooting gallery, to see where the Queen made Anglo-Irish history last month.
Holby's consultant surgeon has had five wives, a gambling addiction and lost a son to heroin overdose.
"The Citizens Advice Bureau put the word out to the city's modest collection of heroin addicts," Wright remembers.
I know about this place partly because I live in Paris and I am a frequent Eurostar traveller, and partly because this is where Google sent me when I typed in the request "Where to find heroin in Paris".
At no point did we wish to glamorise or promote the drug; it was a given that in these cities countless lives had been wrecked by heroin.
I should say from the outset I am not a heroin user and I only really began to find out about the Parisian drug scene a few months ago when, with my friend and producer Geoff Bird, I started to write a documentary for Radio 4 called Heroin.
In New York City, some heroin lovers have gone as far as collecting the tiny bags in which the drug is sold.
"How can I say anything bad about heroin?" she says, not quite answering the question.
