Hi,
The two drugs you mentioned are two very different drugs. Taxim o is an antibioctic(given in infection), and colimex df is antispasmodic(given in pain abdomen). So drug to be given is colimex df in pain abdomen,but on doctors prescription because colics(pain abdomen ) are very common in a child,and they might be off without taking anything.
Your doctor might have suspected some infection thats why he must have prescribed you with an antibiotic.
Colimex df is given for abdominal distension ...
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