The drink enjoyed growing success in the country, with its first advertising campaign launched in Queensland in September 2007. This advertisement was broadcast in 2000, but when it was repeated in 2003, it led to seventeen complaints [58] about it being offensive to members of the transgender community.

According to the advertising agency Leith, the advertisement was meant to "create a sense of humour while confirming the maverick nature of the brand". The 103 third parties who use cookies on this service do so for their purposes of displaying and measuring personalized ads, generating audience insights, and developing and improving products. Launched in 1901 in Scotland, IRN-BRU is a carbonated soft drink made to an original secret recipe, which contains 32 flavours. It may not be reproduced in any way whatsoever without Ocado Limited's prior consent, nor without due acknowledgement.On 4 March 2022, due to the ongoing 2022 Russian invasion of Ukraine, AG Barr cut ties with the Russian market. Irn-Bru was the only soft drink on sale at the 2021 United Nations Climate Change Conference (COP26) in Glasgow, Scotland, due to a sponsorship arrangement. This later turned out to be fraud carried out by a third-party company, and Mjøndalen IF never received any sponsorship from Irn-Bru, even though the team played the 2009 season with Irn-Bru logo on their shirts. Irn-Bru began being sold in Russia in 1997, and by 2002, it had become their third best selling soft drink. An advertising campaign launched in Spring 2000 aimed to "dramatise the extraordinary appeal of Irn-Bru in a likeably maverick style".

There is also a sugar-free version and Irn Bru Xtra, which also has no sugar, containing just 1 calorie per 100ml. Information and statements about products are not intended to be used to diagnose, treat, cure, or prevent any disease or health condition. While we have taken care in preparing this summary and believe it to be accurate, it is not a substitute for reading the product packaging and label prior to use.

Irn-Bru has long been the most popular soft drink in Scotland, with Coca-Cola second, but competition between the two brands brought their sales to roughly equal levels by 2003. This classic Scottish soft drink packs a bold flavor that won't be "improved" – it's sure to take you right back to turn-of-the-century Scotland.