(SEOUL, KOREA) -- Fake Viagra made in North Korea has turned up on the streets of South Korea, where police have detained a local man for peddling a bogus version of the impotence pill.

Police officers in Seoul said Friday they were holding Bu Hyun-shik, 52, after confiscating close to 3,000 fake Viagra pills that they said Bu claimed were made in North Korea.

"The pills are white, round and wrapped in aluminum foil," a police officer said -- very different from the real erectile dysfunction remedy.

Viagra is sold in pharmacies in Seoul at about 15,000 won ($13) a pill, triple Bu's price tag of 5,000 won.

A Seoul pharmacist said the low price should make would-be buyers wary of fake "potentially dangerous" pills.