More than a third of cocaine users in Britain admit it is quicker to receive the drug than a takeaway pizza, while Scottish users are found to consume more than double the worldwide average.
The 2018 Global Drug Survey found 37% of those who said they regularly consume the Class A substance report delivery times of 30 minutes or less.
The figure rose to 82.93% for those who claimed they could obtain it through “same-day delivery”.
The worldwide study surveyed 15,000 people who said they regularly used cocaine.
It found Brazil had the quickest availability of the drug, with 45% of respondents saying delivery takes less than half an hour, while just 13% of those surveyed in Australia said the same.
Meanwhile, drug users in Scotland were found to consume more cocaine than those elsewhere in the UK.
Researchers found the amount of the drug consumed in a single session was more than double the global average.
Scots users said they consumed an average of 1.2g of the drug, while English users said they used 0.7g. The worldwide average was 0.5g.
The figures have led scientists to suggest cocaine may be less pure in Scotland than elsewhere.
The study also found Scotland had double the number of respondents admitting to alcohol related injuries (4.2%) than in England (2.1%).
Experts have said the study highlights the country’s unique challenge with substances.
Katy MacLeod of the Scottish Drugs Forum told HuffPost UK: “There are a range of factors which potentially influence Scotland’s higher cocaine consumption.
“Issues such as sometimes vast differences in purity are likely to play a role as people using lower purity street level cocaine often up their overall consumption to compensate for poorer quality.
“One of the key factors is Scotland’s relationship with alcohol, with the vast majority of cocaine users in Scotland using both together and increasing the risks of harm significantly.
“It is crucial that frontline services have the resources to respond to this emerging issue and consider targeted services for people who may not see their use as problematic.”
The Global Drug Survey reaches over 100,000 people each year and includes participants in a database screened for validity. It uses anonymous online methods to collect data, according to its website.