Pharmacist-reviewed · built on FDA labels
Browse drugs & medications A–Z
Pharmacist-reviewed information on uses, dosing, side effects, and interactions — built from official FDA drug labels.
Dicyclomine
Dicyclomine is an antispasmodic and anticholinergic medicine used to treat irritable bowel syndrome (IBS) by reducing painful gut muscle spasms.
What it’s for: Dicyclomine hydrochloride — available as capsules, tablets, oral solution, and intramuscular injection — is indicated for the treatment of functional bowel/irritable bowel syndrome (IBS). All supported formulations share this indication.
Dicyclomine relaxes the overactive muscles in your intestines that cause IBS cramping and pain — it works both by blocking certain nerve signals and by directly calming the gut muscle. Because it's absorbed fairly quickly after you take an oral dose, you may notice some relief within an hour or two.
Clopidogrel (Plavix) is a “prodrug” that the liver enzyme CYP2C19 has to activate. People with a weak version of that gene may get less benefit.
Read about ClopidogrelWarfarin is named after WARF, the Wisconsin Alumni Research Foundation that funded its discovery, plus “-arin” from coumarin.
Read about WarfarinAntibody drug names ended in “-mab” for decades. In 2021 the WHO introduced four new endings for new ones: -tug, -bart, -mig and -ment.
Read about Adalimumab InjectionAtropine comes from deadly nightshade, Atropa belladonna. “Belladonna” means “beautiful lady,” from its old use to widen the pupils.
Read about AtropineSkin patches can deliver medicine steadily for anywhere from several hours to a week, depending on the product.
Hepatitis C became curable for most people with direct-acting antivirals like sofosbuvir, first approved in late 2013. Today’s all-oral regimens cure more than 95% of patients.
Read about SofosbuvirWarfarin’s story began in the 1920s, when cattle bled to death after eating spoiled sweet clover.
Read about WarfarinGenerics often look different from the brand because U.S. trademark law doesn’t let them copy its exact color, shape or markings.
Over-the-counter medicines carry a standardized “Drug Facts” label, a format the FDA introduced in 1999.
The word “vaccine” comes from the Latin vacca, “cow,” a nod to Edward Jenner’s 1796 cowpox experiments.
The Bowl of Hygieia, a snake wound around a cup, is the internationally recognized symbol of pharmacy.
Starting in 1898, Bayer marketed heroin as a cough suppressant.
⭐ Popular medications
The drug pages people are reading most — refreshed through the day from real visits.
✨ Newly added
The newest drug pages in the library.
🆕 Just updated
Drug pages most recently refreshed against the latest FDA labeling.
🩺 Browse by what it treats
Start from the condition, not the drug name. Each one lists well-known medicines approved for it and the drug families mostly used for it.
🛡️ Today in medication safety
Live signals from the FDA data we track. Counts refresh hourly.
🚨 Recent FDA drug recalls 40 click to expand
- Trokendi Xr, (Topiramate) Extended-Release Capsules, 50 Mg, 30 Capsules, Rx Only, Manufact... Class III Aug 31, 2026
- Mycophenolate Mofetil Class II Aug 26, 2026
- Fluphenazine Hydrochloride Class III Aug 25, 2026
- Povidone Iodine 1.25% / Proparacaine Hcl 0.5% Ophthalmic Solution, 10 Ml Per Dropper Bottl... Class III Aug 24, 2026
- Trazodone Hydrochloride Class II Aug 24, 2026
- Ramipril Class II Aug 24, 2026
- Prasugrel Class II Aug 21, 2026
- Broadway Joe's Pain Cream, 3000 Gm Cbd, (Histamine Dihydrochloride 0.025%) (Cdb Isolate 30... Class II Aug 21, 2026
- Broadway Joe's Pain Cream, (Histamine Dihydrochloride 0.025%), 1500Mg Cbd Isolate, 1000Mg... Class II Aug 21, 2026
- Elapegademase-Lvlr Class III Aug 19, 2026
- Buprenorphine Class III Aug 19, 2026
- Chlorhexidine Gluconate Class II Aug 18, 2026
- Prasugrel Class II Aug 17, 2026
- Dextrose Injection, Usp, 70 %, 2000 Ml Bags, Rx Only, Baxter Healthcare Corporation Deerfi... Class I Aug 17, 2026
- Sodium Chloride Class I Aug 17, 2026
- The One Spf 50 Invisible Sunscreen Gel, (Avobenzone 3%, Homosalate 7%, Octocrylene 10%, Oc... Class II Aug 14, 2026
- The One Spf 50 Invisible Sunscreen Gel, (Avobenzone 3%, Homosalate 7%, Octocrylene 10%, Oc... Class II Aug 14, 2026
- The One Spf 50 Invisible Sunscreen Gel, (Avobenzone 3%, Homosalate 7%, Octocrylene 10%, Oc... Class II Aug 14, 2026
- The One Spf 50 Invisible Sunscreen Gel, (Avobenzone 3%, Homosalate 7%, Octocrylene 10%, Oc... Class II Aug 14, 2026
- Ibuprofen, 150 Mg Per 7.5 Ml, Delivers: 7.5 Ml, Conc: 20 Mg/Ml, Oral Suspension, 12Ml Oral... Aug 14, 2026
- Paxil Cr, Paroxetine, Extended-Release Tablets, 37.5Mg, 30 Count Bottle, Rx Only, Manufact... Class II Aug 13, 2026
- Sodium Chloride, Sodium Lactate, Potassium Chloride, And Calcium Chloride Class I Aug 12, 2026
- Tocilizumab-Aazg Class I Aug 10, 2026
- Zicam, Cold Remedy, Medicated Nasal Swabs, With Cooling Menthol & Eucalyptus, 20 Single-Us... Class II Aug 10, 2026
- Doxylamine Succinate And Pyridoxine Hydrochloride Class III Aug 7, 2026
- Carbamazepine Class II Aug 7, 2026
- Clindamycin Phosphate Class II Aug 6, 2026
- Vancomycin Hydrochloride Class II Aug 6, 2026
- Clindamycin Phosphate Class II Aug 6, 2026
- Vasopressin In 0.9% Sodium Chloride Class II Aug 6, 2026
- Vancomycin Hydrochloride Class II Aug 6, 2026
- Famotidine Class II Aug 6, 2026
- Insulin Human Class II Aug 6, 2026
- Clindamycin Phosphate Class II Aug 6, 2026
- Dexmedetomidine Hydrochloride In 0.9% Sodium Chloride Injection, 400 Mcg Per 100 Ml (4 Mcg... Class II Aug 6, 2026
- Clindamycin Phosphate Class II Aug 6, 2026
- Amiodarone Hydrochloride Class II Aug 6, 2026
- Daptomycin In Sodium Chloride Class II Aug 6, 2026
- Pantoprazole Sodium In 0.9% Sodium Chloride Class II Aug 6, 2026
- Nicardipine Hydrochloride Class II Aug 6, 2026
Source: FDA Enforcement Reports (openFDA), newest first. See all drug recalls on FDA.gov →
Sources: FDA Drug Shortages, FDA Enforcement Reports (recalls), DailyMed/openFDA drug labels, and FDA FAERS adverse-event reports.
🧠 The Daily Rx Quiz
Five quick questions about brand names, drug families and what medicines are for. Same quiz for everyone today — new one tomorrow.
Question 1 of 5 · Brand → generic
Advil is the brand name for which generic drug?
Show answer
Answer: ibuprofen. Advil = ibuprofen, used for pain and fever. Read the Ibuprofen guide →
Question 2 of 5 · What’s it for?
Topiramate (Topamax) is mainly used for…
Show answer
Answer: Epilepsy (seizures). Topiramate (Topamax) is used for epilepsy (seizures). Read the Topiramate guide →
Question 3 of 5 · Decode the name
The “-lukast” in montelukast tells you it belongs to which family?
Show answer
Answer: Leukotriene receptor antagonists. -lukast = Leukotriene receptor antagonists. Block leukotrienes, inflammation messengers behind asthma and allergy symptoms. Read the Montelukast guide →
Question 4 of 5 · Generic → brand
Which brand name belongs to vortioxetine?
Show answer
Answer: Trintellix. Vortioxetine is sold as Trintellix (for depression). Read the Vortioxetine guide →
Question 5 of 5 · Brand → generic
Lipitor is the brand name for which generic drug?
Show answer
Answer: atorvastatin. Lipitor = atorvastatin, used for high cholesterol. Read the Atorvastatin guide →
0/5
Educational trivia, not medical advice. Brand names are trademarks of their owners. Drug-family answers use the official USAN naming stems. Finished scores are counted anonymously (no account, no names) so we can see which questions trip people up.
🔀 Sound-alike showdown
Some drug names are a syllable apart yet treat completely different things — a real cause of medication errors. The FDA keeps an official list of these look-alike name pairs and asks for “Tall Man” capitals so the difference jumps out. Can you tell them apart?
Which one is for depression?
Show answer
- traZODone — depression; also often prescribed off-label in low doses for sleep Read more →
- traMADol — pain severe enough to need an opioid when other options fall short (a weaker opioid) Read more →
💡 An antidepressant and an opioid painkiller — a common pharmacy and handwriting mix-up.
See all 22 look-alike name pairs on the FDA’s Tall Man list ▾
These are the drug-name pairs the FDA’s Name Differentiation Project asks manufacturers to print with “Tall Man” capital letters, because each pair has been mixed up in real prescriptions. The capitals below are the FDA’s own; the uses are our short summaries.
💡 A diabetes pill and a glaucoma pill, one syllable apart.
💡 Both are brain medicines with similar names, but they treat different things and work in different ways.
💡 An antipsychotic and a blood-sugar pill that share their first eight letters.
⚠️ Same family: Same platinum family, but the doses are very different — a swap can mean a serious overdose or underdose.
💡 A fertility medicine and an antidepressant-type medicine for OCD.
💡 An immune-suppressing drug and a TB antibiotic.
⚠️ Same family: Same anthracycline family, different doses and different cancers.
💡 Dimenhydrinate actually contains diphenhydramine plus a caffeine-like stimulant, so doubling up is easy.
💡 Both are hospital IV drugs given in emergencies, which is exactly when a mix-up is most likely.
⚠️ Same family: Same sulfonylurea family, different doses — a swap can drop blood sugar too far.
💡 The classic mix-up: a blood-pressure medicine and an antihistamine for anxiety and itch.
⚠️ Same family: Same opioid family, very different strength: a hydromorphone dose given as if it were morphine is an overdose.
💡 Three hormones, three completely different jobs.
💡 Two rare-disease medicines, two letters apart.
💡 Both are chemotherapy drugs, but mitoxantrone is also an MS treatment.
⚠️ Same family: Same calcium-channel-blocker family, different products and doses.
⚠️ Same family: Nearly the same drug, but different products, forms and doses.
💡 An antipsychotic and a Parkinson’s medicine with opposite effects on dopamine.
⚠️ Same family: Two sulfa antibiotics with largely the same uses but different doses — and sulfisoxazole is no longer sold in the U.S.
⚠️ Same family: Same family, different doses.
💡 An antidepressant and an opioid painkiller — a common pharmacy and handwriting mix-up.
⚠️ Same family: Same vinca family, different doses; vincristine must never be given into the spine.
Name pairs and capitalization come from the FDA’s Name Differentiation Project; the FDA lists hydromorphone and mitoxantrone on their own, so their usual mix-up partners appear in plain lettering. Uses are simplified summaries of each drug’s labeling. When you pick up a prescription, say the full drug name back to your pharmacist.
🔤 Decode any drug name
Generic names aren’t random. Official “stems” like -pril, -sartan and -mab tell you a medicine’s family before you read a word of the label. Type one and see.
Works on generic names. Brand names (like Lipitor) are invented by marketers and don’t follow the stem rules.
Your decoded name will appear here.
Stems come from the official USAN stem list published by the American Medical Association. A stem describes a drug family, not whether a medicine is right for you.
🏆 Medicaid’s most-prescribed medicines
Prescriptions paid for by Medicaid, Q2 2025 – Q1 2026 — from the CMS State Drug Utilization Data. Spending is gross, before manufacturer rebates.
Most filled
- 🥇 Albuterol 19.5M fills
- 🥈 Ibuprofen 13.7M fills
- 🥉 Cetirizine 12.1M fills
- 4 Gabapentin 11.8M fills
- 5 Atorvastatin 11.5M fills
- 6 Amoxicillin 11.5M fills
- 7 Fluticasone 11.1M fills
- 8 Ondansetron 10.4M fills
- 9 Hydroxyzine 9M fills
- 10 Sertraline 8.9M fills
Most spent on
- 🥇 Semaglutide $6.3B
- 🥈 Bictegravir, Emtricitabine, and Tenofovir Alafenamide $3.5B
- 🥉 Adalimumab Injection $3.5B
- 4 Tirzepatide $3.3B
- 5 Dupilumab Injection $3B
- 6 Empagliflozin $2.5B
- 7 Paliperidone Palmitate $2.3B
- 8 Dulaglutide Injection $1.9B
- 9 Risankizumab-rzaa Injection $1.7B
- 10 Cariprazine $1.6B
Medicaid claims only — not every U.S. prescription. Rankings group every strength and form of the same ingredient.
📈 Pharmacy price movers
The medicines whose pharmacy purchase price moved the most over the last 4 weeks (Aug 26, 2026 → Sep 23, 2026), from CMS’s weekly NADAC survey. This is what pharmacies pay per tablet, mL or gram — not what you pay at the counter.
Going up
- +78% Milnacipran Hydrochloride MILNACIPRAN HYDROCHLORIDE 12.5 mg tablet $0.441 → $0.782 per each
- +62% Trihexyphenidyl Hydrochloride TRIHEXYPHENIDYL HYDROCHLORIDE 2 mg/5mL solution $0.0977 → $0.1586 per mL
- +50% Vardenafil Hydrochloride VARDENAFIL HYDROCHLORIDE 10 mg tablet $1.91 → $2.87 per each
- +47% Verapamil Hydrochloride VERAPAMIL HYDROCHLORIDE 180 mg capsule $1.42 → $2.09 per each
- +44% Doxycycline Hyclate DOXYCYCLINE HYCLATE 75 mg tablet $0.382 → $0.548 per each
- +38% Finzala 1-0.02(24)-75 Chew Tab $0.22 → $0.304 per each
- +32% Oxiconazole Nitrate OXICONAZOLE NITRATE 10 mg/g cream $3.11 → $4.10 per gram
- +31% Timolol Maleate TIMOLOL MALEATE 5 mg/mL solution/ drops $16.68 → $21.81 per mL
Going down
- -25% Fingolimod FINGOLIMOD HYDROCHLORIDE .5 mg capsule $2.10 → $1.58 per each
- -23% Potassium Chloride POTASSIUM CHLORIDE 1.5 g powder $0.614 → $0.47 per each
- -23% Venlafaxine Hydrochloride VENLAFAXINE HYDROCHLORIDE 37.5 mg tablet $0.462 → $0.358 per each
- -22% Estradiol ESTRADIOL .75 mg/.75g gel $0.755 → $0.592 per each
- -21% Aripiprazole (aripiprazole orally disintegrating) ARIPIPRAZOLE 15 mg tablet $2.82 → $2.22 per each
- -21% Risedronate Sodium RISEDRONATE SODIUM MONOHYDRATE 35 mg tablet $2.01 → $1.60 per each
- -20% Milnacipran Hydrochloride MILNACIPRAN HYDROCHLORIDE 25 mg tablet $3.16 → $2.53 per each
- -19% Topiramate TOPIRAMATE 15 mg capsule $0.283 → $0.229 per each
See the 12-month movers (Feb 21, 2024 → Sep 23, 2026) ▾
Going up
- +3135% Acetaminophen And Codeine Phosphate solution $0.0145 → $0.4688 per mL
- +1412% Isoniazid ISONIAZID 100 mg tablet $0.115 → $1.732 per each
- +1411% Isosorbide Mononitrate ISOSORBIDE MONONITRATE 20 mg tablet $0.152 → $2.291 per each
- +1322% Isoniazid 300 Mg Tablet $0.239 → $3.402 per each
- +510% Lamivudine LAMIVUDINE 100 mg tablet $1.55 → $9.48 per each
- +249% Glyburide And Metformin Hydrochloride tablet $0.0491 → $0.1715 per each
- +223% Metoclopramide Hydrochloride METOCLOPRAMIDE HYDROCHLORIDE 5 mg/5mL solution $0.039 → $0.1257 per mL
- +173% Doxepin Hydrochloride DOXEPIN HYDROCHLORIDE 10 mg/mL solution $0.307 → $0.839 per mL
Going down
- -89% Varenicline Tartrate kit $3.634 → $0.397 per each
- -88% Dabigatran Etexilate DABIGATRAN ETEXILATE MESYLATE 75 mg capsule $6.359 → $0.75 per each
- -86% Varenicline 1 Mg Tablet $2.227 → $0.316 per each
- -85% Metformin Hydrochloride METFORMIN HYDROCHLORIDE 1000 mg tablet $2.193 → $0.336 per each
- -84% Fingolimod FINGOLIMOD HYDROCHLORIDE .5 mg capsule $9.74 → $1.58 per each
- -84% Estradiol ESTRADIOL .75 mg/.75g gel $3.62 → $0.592 per each
- -80% Naproxen NAPROXEN 125 mg/5mL suspension $0.592 → $0.122 per mL
- -79% Theophylline THEOPHYLLINE 300 mg tablet $1.576 → $0.33 per each
Source: CMS National Average Drug Acquisition Cost (NADAC), a weekly national average of what retail pharmacies paid per unit. It leaves out rebates, dispensing fees and your insurance, so a move here may or may not reach your copay. Only moves of 15% or more (and at least 2¢ a unit) are shown, one product per medicine.
ℹ️ Using this drug library
What will I find on a drug page?▾
How do I find my drug?▾
What do drug-name endings like -pril or -mab mean?▾
What do the * and ** marks mean?▾
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Where This Drug Information Comes From
Every page is assembled from official sources and reviewed before it’s published — here’s exactly how.
🏛️ Official FDA sources
Each drug page is anchored to the manufacturer’s FDA-filed label of record (the same SPL documents published on DailyMed) plus the FDA’s National Drug Code directory of marketed products — synced on an automated weekly cycle so forms, strengths, and manufacturers stay current.
🔗 National Library of Medicine
Drug identities and relationships (generic ↔ brand ↔ product) follow RxNorm, the NLM’s standard medication vocabulary, and pages link out to MedlinePlus patient education from the same institution.
🧑⚕️ Written for people, reviewed by a pharmacist
The plain-language summaries are drafted with AI directly from the official label, then reviewed by a licensed pharmacist before anything is published — no page goes live automatically. Curated by Dr. Brian Staiger, PharmD, BCPS, Clinical Pharmacist.
📊 Safety & cost context
Shortage and recall status come from FDA feeds, adverse-event report counts from FDA FAERS, pharmacy-cost benchmarks from CMS (NADAC), Medicaid prescribing from CMS State Drug Utilization Data, and supplement-interaction data from the licensed Natural Medicines database — each labeled with its source where it appears.
This directory reflects our drug database as of September 30, 2026. Labels, listings, and safety feeds re-sync on automated schedules (most weekly, some daily).
Full detail on every dataset, license, and update schedule: our data sources · editorial policy · how we use AI.