This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: JIPMER 2017, Subject name: Anaesthesia
Patient is treated with dentrolene. All the following are adverse effects except: 
Select and explain. 
A. Hypokalemia, B. Muscle weakness, C. Breathlessness, D. Bradycardia
A: Hypokalemia
Answer: A: Hypokalemia 
Explanation: - Central muscle relaxant - Used in malignant hypehermia, neuroleptic malignant syndrome etc- Cause respiratory muscle weakness - breathlessness- Chronic dantrolene use - liver dysfunction, kidney dysfunction- Bradycardia Dantrolene contributes to prolonged non depolarizing neuromuscular blockade, In addition to volatile anesthetics, other drugs, such as aminoglycoside antibiotics, local anesthetics, cardiac antiarrhythmic drugs, dantrolene, magnesium, lithium, and tamoxifen (an anti-estrogenic drug), may enhance the neuromuscular blockade produced by nondepolarizing NMBDs. A few drugs may diminish the effects of a nondepolarizing NMBD, including calcium, coicosteroids, and anticonvulsant (phenytoin) drugs.