USMLE Step I λ Pharmacology
Desogestrel, 281 Dexamethasone, 239 Dextromethorphan, 161
Diabetes insipidus, nephrogenic, thiazides for, 86 Diabetes mellitus
drugs for treating, 273–277 acarbose, 275 antihypertensive use in, 95 drug list, 291
drugs for treating, 291 insulins, 291 metformin, 275 modes of action, 275
oral hypoglycemics, 274, 276 sulfonylureas, 274, 275 thiazolidinediones, 291
type 1 (insulin dependent diabetes mellitus), 273 type 2 (non-insulin dependent diabetes mellitus), 273
Diabetic ketoacidosis, 273 Diacylglycerol (DAG), 24 Diastolic pressure, 42 Diazepam
biotransformation, 9 characteristics/uses, 134
seizure states/drugs of choice, 149 Diazoxide, as direct-acting vasodilator, 94 Didanosine (DDI)
mechanism of action, 200 side effects, 202
Diffusion, 5 Digoxin
antidote for, 317 characteristics/uses, 99 for heart failure, 97, 99
loop diuretics interaction with, 85 Digoxin immune, as antidote, 317
Dihydropyridine, as calcium-channel blocker, 93 Dihydrotestosterone (DHT), 282 Dihydroxyphenylalanine (DOPA), 56 Diloxanide, 207
Diltiazem, as calcium-channel blocker, 93, 108 Dimercaprol, for heavy metal poisoning, 316, 317 Dinoprostone, 230
Diphenhydramine as antiemetic, 225 properties, 222
Direct Factor Xa inhibitors, 262
Disease-modifying antirheumatic drugs (DMARDs), 235–236, 246 Distal convoluted tubule (DCT), 84
thiazide action on, 86 Distribution, 8–9
apparent volume, 8
apparent volume of distribution, 16 barriers to, 8
conditions affecting, 8 in pharmacokinetics, 3 special barriers to, 8
Disulfiram-like effects, drugs causing, 138
330
Diuretics, 83–89 acidosis caused by, 88
actions in renal tubular segments, 83 alkalosis and, 84, 88
carbonic anhydrase inhibitors, 84, 84–85 drug list, 121
for heart failure, 97, 99 for hypertension, 84–90 hypokalemia and, 84 K+-sparing agents, 87, 121 loop, 85, 85–86
mode of action/effects, 88 osmotic, 84
thiazides, 85, 86–87, 121 Dobutamine
as beta adrenergic agonist, 58 for heart failure, 97, 99
Donepezil, characteristics/uses, 48 Dopamine (DA), 40, 56
as precursor to norepinephrine, 143 blood-brain barrier and, 8
drugs of abuse and, 165 for heart failure, 99
nonmicrosomal metabolism, 11 receptors for, 24, 143, 144
use in shock, 57 Dopamine hypothesis, 156
Dopaminergic neural pathways, 143, 148 Dorzolamide, as carbonic anhydrase inhibitor, 84 Dosage
CNS effects of sedative-hypnotic-anxiolytic drugs, 133 epinephrine, effects on heart rate and blood pressure, 60 infusion rate equations, 16
multiple-dose equations, 16 single-dose equations, 16
Dose-response (D-R) curves graded (quantitative), 19–22
in drug development and testing, 27 quantal (cumulative), 22–23 signaling mechanisms and, 23–26
Doxazosin, as alpha blocker, 62, 93 Doxorubicin
cell-cycle specificity, 299 characteristics/uses, 301 toxicity, 302
Doxycycline, 186, 208 Dronabinol, 225
Drugs of abuse, 165–166
opioid analgesics, 160–161, 167 properties, 163–164
Drug transport, across membrane, modes of, 5 d-Tubocurarine prototype, 156 Dyslipidemias, antihypertensive use in, 95
E
Echinacea, characteristics/uses, 318
Echinocandins, characteristics/uses, 197