This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pharmacokinetics, Subject name: Pharmacology
The drugs w hich achieve concentration in bile are all except - 
Select and explain. 
A. Erythromycin, B. Tetracycline, C. Oral contraceptives, D. Alpha methyldopa
D: Alpha methyldopa
Answer: D: Alpha methyldopa 
Explanation: Ans. is 'd' i.e., Alpha methyl dopa Drugs that attain high concentration in bile areo Erythromycino Oral contraceptiveso Rifampino Ampicillino Tetracyclineo Phenolphthalein