The question asks which of the following is not a sulphonamide derivative. Let's analyze each option to identify the correct answer.
Based on the above information, Rizatriptan is not a sulphonamide derivative. It is distinct from the other given options as it does not contain the sulphonamide functional group. Thus, the correct answer is Rizatriptan.
Choose the correct match of laxative and its Mechanism of Action (MOA):

Match the following:
(P) Schedule H
(Q) Schedule G
(R) Schedule P
(S) Schedule F2
Descriptions:
(I) Life period of drugs
(II) Drugs used under RMP
(III) List of Prescription Drugs
(IV) Standards for surgical dressing