Homocystinuria Due to Cystathionine Beta-Synthase Deficiency, also known as homocystinuria with or without response to pyridoxine, is related to homocystinuria caused by cystathionine beta-synthase deficiency and homocystinuria, and has symptoms including seizures An important gene associated with Homocystinuria Due to Cystathionine Beta-Synthase Deficiency is CBS (Cystathionine Beta-Synthase). The drugs Acetaminophen and Acetylcysteine have been mentioned in the context of this disorder. Affiliated tissues include skin and liver, and related phenotypes are failure to thrive and lens subluxation