Look at active indridients
Rinostat Tab = Acetaminophen + Chlorphenamine + Phenylpropanolamine

Chericof Syrup = Chlorphenamine + Dextromethorphan + Phenylephrine

Pedia Syrup = Acetaminophen + Dextromethorphan+ Chlorphenamine +Pseudoephedrine

These should be available in Nepal.