Sir Dave Brailsford has revealed that the mystery package delivered to Sir Bradley Wiggins during the 2011 Critérium du Dauphiné contained “Fluimucil, for a nebuliser”.

Team Sky chief Brailsford told MPs at a Culture, Media and Sport committee meeting that the suspect package, which contents have remained a secret until now, contained Fluimucil, a decongestant which “helps to get rid of sticky and thick mucus that is obstructing the airway” that is openly available in France where Wiggins was competing.

The substance, which is not banned, does not have a licence to be used in the United Kingdom, and was flown nearly 1,000km with British Cycling assistant Simon Cope for Wiggins to take, which was administered by Dr Richard Freeman, the doctor at the centre of the UK Anti-Doping [Ukad] investigation into allegations of wrongdoing by British cycling.

When asked about the evidence that suggests Fluimicil is not licenced in the UK, Brailsford responded: “We use is on a regular basis.”

It is also claimed that one of the precautions for the use of Fluimicil is for people who suffer from asthma, which Wiggins claims to, should avoid taking it. According to londontrials.com, precautions include “asthma and status asthmaticus” sufferers.

Wiggins went on to win the Critérium du Dauphiné that year, having taken the substance for medical purposes ahead of the final day of competition.

Brailsford was speaking to a Culture, Media and Sport committee (AFP)