This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
Which of the following produces neuropsychiatric symptom? 
Select and explain. 
A. Cycloserine, B. Cyclosporine, C. Cephalosporine, D. Ethambutol
A: Cycloserine
Answer: A: Cycloserine 
Explanation: Cycloserine is an antibiotic effective against Mycobacterium tuberculosis. The side effects are mainly central nervous system (CNS) manifestations, i.e. headache, irritability, depression, psychosis and convulsions. Co-administration of pyridoxine can reduce the incidence of some of the CNS side effects (e.g. convulsions).