The only main side effect of this will be that your pet may gain weight due to the fact that they are no longer roaming around looking for other cats to mate with and may become «lazy.» (pethelpful.com)
Castor oil's main side effects fall into the categories of skin reactions and gastrointestinal upset, which isn't terribly surprising given the agent's actions on your intestinal wall.6 (articles.mercola.com)
«So one main side effect of THC is short - term memory impairment,» he says. (scientificamerican.com)