The suit filed in Houston federal court accuses the companies that own the gas stations of selling pills that are billed as sexual enhancement supplements, which lab tests have found actually contain drugs such as sildenafil, desmethyl carbodenafil, dapoxetine and tadalafil.
Check out the coverage by various local TV stations in Texas:
KGNS (NBC) Laredo, Texas: http://www.kgns.tv/content/news/Texas-lawyer-sues-gas-stations-over-490283331.html
KXAN (NBC) Austin, Texas: https://www.kxan.com/news/texas/lawsuit-houston-convenience-stores-sell-viagra-laced-supplements/1351083377
ABC 13 Houston, Texas: https://abc13.com/health/viagra-laced-pills-allegedly-being-sold-at-houston-gas-stations/3895662/