Brief Answer:
Classification based on its medical use...

Detailed Answer:
Hi,

I am sorry Dr. Rynne is not available to answer questions at this time of the day and since you posted your query some time ago, I shall take the opportunity to answer your query.

Well, in most places medical drugs are classified based on its clinical use. Accordingly the commonly used classification is as follows:
1. Sympathomimetic and parasympathomimetic
2. Antisympathetic and antimuscarinic
3. Organophosphate group of drugs
4. Anticholinestrase inhibitors
5. Antihypertensives
6. Antiasthmatic
7. Drugs used in congestive heart failure
8. Antiarrhythmic drugs
9. Antiulcer drugs
10. Antidiarrheal drugs
11. Laxatives and stool softeners
12. Antiplatelets
13. Anticoagulants
14. Thrombolytics
15. Antiepileptics
16. NSAID's
17. Steroids
18. Anxiolytics
19. Antidepressives
20. Antipsychotics
21. Drugs used in bipolar illness
22. Anticancer drugs
23. Antibiotics - penicillin group of antibiotics, macrolides, tetracyclines, fluoroquinolones, sulfonamide, trimethoprin+sulfamethoxazole, cephalosporin, urinary antiseptics, Drugs against anaerobes
24. Antimalarial
25. Antifungal
25. Antiamoebic and antihelmenthics

Hope this suffices.

Regards

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Brief Answer:
List of some names provided...

Detailed Answer:
Hi,

It's cumbersome and beyond the scope of this page to write all medical drugs into each of the listed category. Nevertheless, I shall provide some examples for each of those category.
1. a) Sympathomimetic - Adrenaline, noradrenaline, pseudoephedrine
b) Parasympathomimetic (cholinergic drugs) - Nicotine, pilocarpine, methacholine
2) a) Antisympathetic - Alfazusin, tamsulosin, propranol, metaprolol
b) Anticholinergic (Antimuscarinic) - Atropine
3) Organophosphate drugs - Pesticides
4) Anticholinesterase inhibitors - Neostigmine, physostigmine
5) Antihypertensive - Nefedepine, amlodepine, clonidine, verapamil, losartan
6) Drugs used in congestive heart failure - Digoxin
7) Antiarrhythmia drugs - Amidarone
8) Antiulcer drugs - ranitidine, famotidine, omeprazole, pantoprazole, esomeprazole, bismuth salicylates
9) Antidiarrheal - loperamide
10) Laxatives and stool softner - lactulose, isphagulla husk, magnessium carbonate, bisacodyl
11) Antiasthmatic - theophyline, salbutamol, salmetrol,
12) Antiplatelet - aspirin, clopidogrel
13) Anticoagulant - heparin, enoxaparin, warfarin,
14) Thrombolytic - alteplase
15) Antiepileptic - phenytoin, sodium valproate, carbamazepine, levetiracetam
16) NSAID's - Paracetamol (acetaminophen), ibuprofen, diclofenac, mefenamic acid, aspirin
17) Steroids - prednisolone, dexamethasone, fluticasone, cortisol
18) Anxiolytic and sedatives - diazepam, clonazepam, midazolam,
19) Antidepressants - fluoxetine, paraoxetine, imipramine, escitalopram
20) Antipsychotics - clozapine, risperidone, olanzepine, quetiapine, haloperidol
21) Drugs used in bipolar illness - lithium
22) Anticancer drugs - 5 flurouracil, methotrexate, vincristine
23) Antibiotics - pencillin, amoxicillin, ampicillin, ciprofloxacin, doxycycline, ceftriaxone, cefuroxime, metronidazole, nitrofurantoin, oflaxacin, streptomysin,
24) Antimalarial - chlorquine, quinine, artemether, artesunate
25) Antifungal - ketoconazole, clotrimaxole, fluconazole, itraconazole
26) Antiamoebic and antihelminthic - albendazole, mebendazole.

Besides this list, a few other categories that I missed out earlier include
27) Antihistamines - cetrizine, chlorpheniramine, levocetrizine, azelastine
28) Antiangina drugs - sorbitrate, isosorbide monohydrate, diltiazem
29) Antiparkinsons agents - levodopa, carbidopa
30) Hematanic and nurtitional supplements - ferrous sulfate, multivitamins, dextrose

Regards

PS: There are various subcategories of the listed main categories. And few subcategories overlap as they have more than one clinical uses.

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