Are there side effects?

Neither in animals nor in people have any side effects been recorded.
So far there have not been any cases of migration of solid gold implants. On radiographs taken up to 5 years following Local Gold Treatment, it have been shown that the gold pieces remained in exactly the same position in which they originally had been placed.
The radiographs show the same dog after Local Gold Treatment. The small white spots are implanted gold pieces.
The radiograph on the left was made immediately after the treatment. The one on the right was made 5 years after the treatment. Note that the gold pieces are still in the same positions.