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
[{'content': 'Acetyl salicylate & phenobarbitone are better absorbed from stomach because they are- \nSelect and explain. \nA. Weak acids remain non-ionic in gastric pH, B. Weak acids remain ionic in gastric pH, C. Strong acids fully ionised in gastric pH, D. Weak bases which are ionised at gastric pH', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Weak acids remain non-ionic at gastric pH Remember simple funda : When the medium is same drugs can cross the membrane: i) Acidic drugs can cross the membrane in acidic medium, i.e., acidic drugs are unionized at acidic pH and are lipid soluble --> so, in stomach acidic drugs are absorbed. ii) Basic drugs can cross the membrane in basic medium, i.e., basic drugs are unionized at alkaline pH and are lipid soluble --> so, in intestine basic drugs are absorbed.", 'role': 'assistant'}]