Houvenaghel has also accused the organisation of ageism, adding that coaches had “zero regard” for her welfare.
The complainants are understood to include several medallists from Rio 2016.
Badminton, baseball, basketball, taekwondo and weightlifting will share almost £7m for their development work from 2017-21.
The cyclist won two Olympic golds and five world titles.
With husband Barney, the Olympic champion is aiming to boost the next generation of female cyclists.
He was diagnosed with the liver condition when he was 17 and told by doctors that he would need a transplant by the age of 30.
All the key issues set out and explained.
The claim contravenes the International Cycling Union’s “no needles” policy.
Movistar’s Nelson Oliveira was seen giving team-mate Jose Rojas a shove during the race.