An Indian-American man has lost his US citizenship after being sentenced to over five years in prison for conspiring to illegally distribute male enhancement pills imported from China, Justice Department said on Friday.

Ismail Ali Khan, 29, was also convicted and sentenced for falsely stating in his application to become a naturalised US citizen that he had never committed a crime.

He now faces deportation to India.

Khan, a resident of Decatur in Georgia, was sentenced to five years, seven months in federal prison after being convicted of conspiring to import illegally and distribute male enhancement pills that contained the drug found in Viagra, the US Department of Justice, Attorney's office, Northern District of Georgia said in a statement.

His sentence would be followed by three years of supervised release, it said.