Table of Contents

Drugs Classfications

Drugs Acting on the Central Nervous System (CNS)

Sedatives and Hypnotics

1 Benzodiazepines

Generic NameUSA – Common Brand NamesUK – Common Brand Names
AlprazolamXanax®, Niravam® (Drugs.com)Xanax® (private prescription only) (Mental Health Matters)
ChlordiazepoxideLibrium® (KFX)Librium® (Benzo)
ClonazepamKlonopin® (APRI Link)Rivotril® (Benzo)
ClorazepateTranxene® (Benzo)Tranxene® (Benzo)
DiazepamValium® (Castle Craig)Valium® (Benzo)
FlurazepamDalmane® (E-Space)Dalmane® (Benzo)
LorazepamAtivan® (APRI Link)Ativan® / Tavor®, Temesta® (Benzo)
NitrazepamMogadon® (Benzo)Mogadon® (E-Space)
TemazepamRestoril® (USA) (APRI Link)Normison®, Euhypnos®, Sompam® (Benzo)
TriazolamHalcion® (Detox Plus Rehab Clinics UK)Halcion® (note: discontinued in UK) (Detox Plus Rehab Clinics UK)

1.2 Anxiolytics

  • Examples: Benzodiazepines, Buspirone, SSRIs (Escitalopram, Sertraline)

1.3 Antidepressants

  • Classes:
    • SSRIs – Fluoxetine, Sertraline
    • SNRIs – Duloxetine, Venlafaxine
    • TCAs – Amitriptyline, Imipramine
    • MAOIs – Phenelzine, Selegiline
    • Atypical – Bupropion, Mirtazapine

1.4 Antipsychotics

  • Typical (First Generation): Haloperidol, Chlorpromazine
  • Atypical (Second Generation): Risperidone, Clozapine, Olanzapine

1.5 Mood Stabilizers

  • Examples: Lithium, Valproate, Carbamazepine, Lamotrigine

1.6 Antiepileptic Drugs

  • Examples: Phenytoin, Carbamazepine, Valproate, Levetiracetam, Gabapentin

1.7 Antiparkinsonian Drugs

  • Examples: Levodopa + Carbidopa, Selegiline, Pramipexole, Amantadine

1.8 CNS Stimulants

  • Examples: Caffeine, Amphetamine, Methylphenidate

1.9 Muscle Relaxants

  • Examples: Cyclobenzaprine, Baclofen, Tizanidine, Methocarbamol

1.10 Opioid Analgesics

  • Examples: Morphine, Fentanyl, Oxycodone, Tramadol
  • Antagonists: Naloxone, Naltrexone

2. Drugs Acting on the Autonomic Nervous System (ANS)

2.1 Cholinergic Drugs (Parasympathomimetics)

  • Examples: Pilocarpine, Bethanechol, Neostigmine

2.2 Anticholinergic Drugs (Parasympatholytics)

  • Examples: Atropine, Ipratropium, Scopolamine

2.3 Adrenergic Drugs (Sympathomimetics)

  • Examples: Adrenaline, Noradrenaline, Dopamine, Ephedrine

2.4 Adrenergic Blockers (Sympatholytics)

  • α-blockers: Prazosin, Tamsulosin
  • β-blockers: Propranolol, Metoprolol, Atenolol
  • α + β blockers: Labetalol, Carvedilol

3. Drugs Acting on the Cardiovascular System (CVS)

3.1 Anti-hypertensive Drugs

  • Diuretics (Hydrochlorothiazide, Furosemide)
  • ACE inhibitors (Enalapril, Lisinopril)
  • ARBs (Losartan, Valsartan)
  • Calcium channel blockers (Amlodipine, Verapamil)
  • Beta-blockers (Metoprolol, Propranolol)

3.2 Anti-anginal Drugs

  • Nitrates (Nitroglycerin, Isosorbide dinitrate)
  • Beta-blockers, Calcium channel blockers

3.3 Anti-arrhythmic Drugs

  • Class I: Lidocaine, Quinidine
  • Class II: Propranolol
  • Class III: Amiodarone
  • Class IV: Verapamil

3.4 Anti-failure Drugs

  • Diuretics, ACE inhibitors, Beta-blockers, Digoxin, ARNI (Entresto)

3.5 Anti-hyperlipidemic Drugs

  • Statins (Atorvastatin, Rosuvastatin)
  • Fibrates, Ezetimibe, PCSK9 inhibitors

3.6 Anti-coagulants

  • Heparin, Warfarin, Enoxaparin, Apixaban

3.7 Anti-platelet Drugs

  • Aspirin, Clopidogrel, Ticagrelor

3.8 Thrombolytics

  • Streptokinase, Alteplase

4. Drugs Acting on the Respiratory System

  • Bronchodilators: Salbutamol, Theophylline, Ipratropium
  • Corticosteroids: Budesonide, Fluticasone
  • Leukotriene antagonists: Montelukast
  • Antitussives: Dextromethorphan, Codeine
  • Expectorants: Guaifenesin

5. Drugs Acting on the Gastrointestinal Tract

5.1 Antacids and Antiulcer Drugs

  • H₂ blockers (Ranitidine, Famotidine)
  • Proton pump inhibitors (Omeprazole, Pantoprazole)
  • Sucralfate, Misoprostol

5.2 Antiemetic Drugs

  • Ondansetron, Metoclopramide, Domperidone

5.3 Laxatives and Purgatives

  • Lactulose, Bisacodyl, Psyllium husk

5.4 Anti-diarrheal Drugs

  • Loperamide, Bismuth subsalicylate

5.5 Drugs for Inflammatory Bowel Disease

  • Mesalamine, Sulfasalazine, Corticosteroids, Biologics (Infliximab)

6. Drugs Acting on the Endocrine System

6.1 Antidiabetic Drugs

  • Insulins: Regular, Lispro, Glargine
  • Oral agents: Metformin, Glimepiride, Empagliflozin, Sitagliptin

6.2 Thyroid Drugs

  • Levothyroxine, Propylthiouracil, Methimazole

6.3 Corticosteroids

  • Hydrocortisone, Prednisolone, Dexamethasone

6.4 Sex Hormones and Modulators

  • Estrogens & Progestins: Ethinylestradiol, Medroxyprogesterone
  • Androgens: Testosterone
  • Antiandrogens: Flutamide, Finasteride

6.5 Contraceptives

  • Oral, Injectable, Intrauterine

7. Drugs Acting on the Hematopoietic System

  • Hematopoietic growth factors: Erythropoietin, Filgrastim
  • Iron preparations: Ferrous sulfate, Ferric carboxymaltose
  • Vitamin B12, Folic acid supplements
  • Anti-anemics

8. Chemotherapeutic Agents (Antimicrobial Drugs)

8.1 Antibiotics

  • β-lactams: Penicillins, Cephalosporins, Carbapenems
  • Macrolides: Azithromycin, Erythromycin
  • Aminoglycosides: Gentamicin, Amikacin
  • Fluoroquinolones: Ciprofloxacin, Levofloxacin
  • Tetracyclines: Doxycycline
  • Others: Clindamycin, Linezolid

8.2 Antifungal Drugs

  • Fluconazole, Amphotericin B, Terbinafine

8.3 Antiviral Drugs

  • Acyclovir, Oseltamivir, Remdesivir, Tenofovir

8.4 Antitubercular Drugs

  • Isoniazid, Rifampicin, Pyrazinamide, Ethambutol, Streptomycin

8.5 Antimalarial Drugs

  • Chloroquine, Artemisinin, Mefloquine, Primaquine

8.6 Anthelmintics

  • Albendazole, Mebendazole, Ivermectin

8.7 Antiprotozoal Drugs

  • Metronidazole, Tinidazole

9. Drugs Acting on the Urinary System

  • Diuretics: Furosemide, Spironolactone
  • Antidiuretics: Desmopressin
  • Drugs for Overactive Bladder: Mirabegron, Gemtesa (Vibegron)
  • Drugs for BPH: Tamsulosin, Finasteride

10. Drugs Acting on the Immune System

  • Immunosuppressants: Cyclosporine, Tacrolimus, Azathioprine
  • Immunostimulants: Levamisole, Interferons
  • Monoclonal antibodies: Infliximab, Adalimumab, Dupilumab

11. Drugs Acting on the Reproductive System

  • Fertility drugs: Clomiphene, Menotropins
  • Oxytocics: Oxytocin, Misoprostol
  • Tocolytics: Nifedipine, Terbutaline

12. Chemotherapy (Anti-cancer Drugs)

  • Alkylating agents: Cyclophosphamide
  • Antimetabolites: Methotrexate, 5-FU
  • Antitumor antibiotics: Doxorubicin
  • Plant alkaloids: Vincristine, Paclitaxel
  • Hormonal agents: Tamoxifen, Flutamide
  • Targeted therapies: Imatinib, Trastuzumab
  • Immunotherapies: Pembrolizumab, Nivolumab

13. Miscellaneous

  • Vitamins & Minerals
  • Antihistamines – Cetirizine, Loratadine
  • NSAIDs – Ibuprofen, Diclofenac
  • Local Anesthetics – Lidocaine, Bupivacaine
  • General Anesthetics – Propofol, Isoflurane
  • Chelating Agents – EDTA, Deferoxamine
  • Antidotes – Naloxone (opioids), Flumazenil (benzodiazepines), Atropine (organophosphate poisoning)