A plain-English reference to the medication classes most Americans encounter. Brand names appear in parentheses for recognition — the generic name is what saves you money. This is education, not medical advice: decisions about medications belong in a conversation with your prescriber and pharmacist.
| Class | Mainly used for | Common examples | How it works | Talk to your doctor about | Generic available? |
|---|---|---|---|---|---|
| Statins | High cholesterol / heart protection | Atorvastatin (Lipitor), rosuvastatin (Crestor), simvastatin (Zocor) | Lower LDL cholesterol and reduce heart attack and stroke risk. Among the most-studied drugs in history. | Muscle aches (usually manageable by switching statins or doses), rare liver enzyme changes | Yes — all first-line statins are inexpensive generics |
| ACE inhibitors & ARBs | High blood pressure, heart & kidney protection | Lisinopril, enalapril; losartan, valsartan | Relax blood vessels; protect kidneys, especially in diabetes. ARBs are the go-to if ACE inhibitors cause cough. | Dry cough (ACE inhibitors), dizziness, elevated potassium; not for use in pregnancy | Yes — very inexpensive generics |
| Metformin | Type 2 diabetes (first-line) | Metformin (Glucophage), incl. extended-release | Reduces glucose production by the liver and improves insulin sensitivity. Decades of safety data. | GI upset early on (often improves with ER form and taking with food); rare B12 lowering with long use | Yes — one of the cheapest prescriptions in America |
| GLP-1 receptor agonists | Type 2 diabetes; weight management | Semaglutide (Ozempic, Wegovy), liraglutide, tirzepatide (Mounjaro, Zepbound)* | Mimic a gut hormone: improve blood sugar, slow stomach emptying, reduce appetite; some reduce cardiovascular risk. | Nausea and GI effects (usually dose-related), rare pancreatitis; expensive — check manufacturer programs | Mostly no — liraglutide has a generic; most others remain brand-only (*tirzepatide is a dual GIP/GLP-1 agonist) |
| SSRIs & SNRIs | Depression, anxiety disorders | Sertraline (Zoloft), escitalopram (Lexapro); venlafaxine, duloxetine (Cymbalta) | Increase serotonin (and norepinephrine for SNRIs) signaling. Full effect takes 4–8 weeks; first choice for most patients. | Early nausea/sleep changes, sexual side effects; never stop abruptly — taper with your prescriber | Yes — all the common ones are cheap generics |
| Levothyroxine | Hypothyroidism | Levothyroxine (Synthroid, Levoxyl) | Replaces thyroid hormone. Among the most-prescribed drugs in the U.S. | Symptoms of over- or under-replacement; dosing tuned by blood tests. Keep the same manufacturer/version when possible | Yes — inexpensive, but consistency of version matters; ask your pharmacist |
| Proton pump inhibitors | Acid reflux, GERD, ulcers | Omeprazole (Prilosec), esomeprazole (Nexium), pantoprazole | Strongly reduce stomach acid production. | Generally well tolerated; long-term use should be reviewed periodically with your doctor | Yes — cheap generics, several available over the counter |
| Inhaled asthma/COPD medications | Asthma, COPD | Albuterol (rescue); fluticasone, budesonide/formoterol (controllers) | Rescue inhalers open airways fast; controller inhalers reduce the inflammation that causes attacks. | Tremor/racing heart (albuterol), oral thrush with steroid inhalers (rinse after use) | Increasingly yes — generic and authorized-generic inhalers have arrived; big savings possible |
| Anticoagulants | Blood clot prevention, atrial fibrillation | Apixaban (Eliquis), rivaroxaban (Xarelto), warfarin | Prevent strokes and dangerous clots. Newer agents (DOACs) need no routine blood testing; warfarin is older and cheap but needs monitoring. | Bleeding risk — report unusual bruising/bleeding immediately; many drug interactions with warfarin | Warfarin: yes. DOACs: generics are beginning to arrive — ask your pharmacist about current options and copay programs |
| Sildenafil & tadalafil | Erectile dysfunction; tadalafil also for BPH | Sildenafil (Viagra), tadalafil (Cialis) | Improve blood flow. ED can be an early sign of cardiovascular disease — worth a real medical visit, not just a pill. | Headache, flushing; dangerous with nitrates — always disclose all medications | Yes — generic prices are a small fraction of the old brand prices |
How to use this page: find your medication’s class, note the generic name, then take it to our savings playbook to compare prices and find assistance programs. If your exact drug isn’t listed here, your pharmacist can tell you its class and generic status in one phone call — it’s part of their job and it’s free.
