Are there additional risks associated with taking lsd post kidney transplant ?

You're not kidding?: LSD toxicity can lead to respiratory arrest, coma, emesis, hyperthermia, autonomic instability, and bleeding disorders. In some cases, the patient's altered perceptions can result in behavioral toxicity, in which an individual fails to appreciate dangers in the environment and may be injured (like failing to take anti-rejection drugs). Ref.http://emedicine.medscape.com/article/1011615-overview

Risks of taking LSD: Having a transplanted kidney and taking lsd causes no increased risk of rejection of the kidney. The real question question is, are you really sure you want to take it? Ask your transplant nephrologist or physician to get her opinion.