The mentioned video contains mnemonics for easy learning of classification of antihypertensive drugs. TIMELINE: 0:08 Classification of antihypertensive drugs 0:18 Mnemonic for diuretics 0:40 RAAS Inhibitors 0:52 Mnemonic for RAAS inhibitors 1:12 Sympathetic inhibitors 1:21 Mnemonics for sympathetic inhibitors 1:42 Calcium channel blockers 2:04 Mnemonic for dihydropyridine 2:13 Vasodilators 2:19 Mnemonic for vasodilators