According to Opposing Views, Baker's suit claims:
"Defendants require employees, who are not models and are not trained or certified in any manner to give injections, to inject controlled substances for erectile dysfunction using a hypodermic syringe into the model's penis. The model can then maintain an erection for multiple hours in duration, during which time substantial shooting of the film can take place at one time without lengthy breaks to ensure the actor maintains an erection."

Full story here: http://www.queerty.com/man-suing-gay-porn-studios-for-forcing-him-to-inject-actors-penises-with-trimix-20121016/#ixzz2AXDxMZK7