 In one alleged case, tranquilization of the same rhino occurred once every two weeks, raising concerns regarding the negative physiological impact of repeated tranquilizations given the lack of studies on the related effects and consequences.Known dangers of the tranquilization process include cardiac arrest, asphyxiation and/or organ damage from the position of the animal upon collapse and vulnerability to predation, falling and drowning post-procedure.Even under the strict veterinary procedures of a research context, there are several cases of death due to tranquilization related complications.