On Wednesday, a federal judge imposes the maximum sentence of three years for a doctor who injected himself and three others with a potentially deadly botulism toxin instead of Botox.

U.S. District Judge James Cohn says Dr. Bach McComb caused unnecessary harm to others. One of the victims Eric Kaplan, 53, testified he considered McComb a Dr. Frankenstein because he seemed to be using experimental substances on his patients without their prior consent.

The 48-year-old McComb pleaded guilty on Nov. 10 to charges of administering botulinum toxin type A, which was not approved for human use by the Food and Drug Administration.

He was apparently using it as a cheap alternative to Botox.

His lawyers argued he deserved a six-month sentence or no time at all, as he did not know the shots were potentially harmful, which they claim is evidenced by the fact he injected himself and his girlfriend.