Most common side effect of DH Ps calcium channe blockers is -
Headache
Constipation
Diarrhoea
Muscle cramps
Ans. is `a' i.e., Headache o The most common side effects caused by the Ca" channel antagonists, paicularly the dihydropyridines, are due to excessive vasodilator. Symptoms include dizziness, hypotension, headache, flushing, digital dysesthesia, and nausea.