June 9 (Reuters) - Valeant Pharmaceuticals International Inc (NYSE:VRX) VRX.TO :
* U.S. says it partially intervenes in whistleblower lawsuit against valeant's
VRX.TO salix pharmaceuticals unit -- court filing
* U.S. joins lawsuit as to claims that salix paid doctors to induce them to
prescribe several of its drugs, medical devices
* U.S. says the payments violated federal anti-kickback laws
* U.S. says salix also violated false claims act by submitting false claims for
the products to medicaid, medicare
* U.S. says the alleged wrongdoing occurred between 2009-2013, prior to
valeant's purchase of salix
* U.S. says it is not intervening with regard to claims that salix improperly
marketed some of the products for off-label uses