This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Central Nervous system, Subject name: Pharmacology
Not true about Fosphenytoin 
Select and explain. 
A. Used for GTCS, B. Prodrug of Phenytoin, C. Lipid soluble, D. Highly protein bound
C: Lipid soluble
Answer: C: Lipid soluble 
Explanation: Fosphenytoin, a more soluble phosphate prodrug of phenytoin, is well absorbed. Fosphenytoin sodium is available for intravenous or intramuscular use and replaces intravenous phenytoin sodium, a much less soluble form of the drug. Used in generalized Tonic-clonic seizures and paial seizures. Highly bound to plasma proteins.Reference: Katzung Pharmacology; 13th edition; Chapter 24; Antiseizure Drugs