Here you’ll find 39 Pills that start with D, organized from “Dabigatran” to “Dutasteride”. The list focuses on oral pills—both generic and brand names—covering common cardiovascular, hormonal, and everyday treatments.

Pills that start with D are a varied set of oral medicines used for conditions from blood clot prevention to hair loss. Historically, drugs like dabigatran changed care by offering safer oral anticoagulation alternatives.

Below you’ll find the table with Name, Generic/Brand, Primary use, Drug class, Common side effects, and Sources.

Name: Official pill name shown on labels and prescriptions, so you can identify the medicine quickly.

Generic/Brand: Shows whether the entry is a generic or branded product, helping you match prescriptions and packaging.

Primary use: Summarizes the main medical purpose so you know why this pill is commonly prescribed.

Drug class: Lists the therapeutic group to give context about how the medicine works and related drugs.

Common side effects: Lists frequent side effects so you can watch for typical reactions and discuss them with clinicians.

Sources: Links to regulatory and product information so you can verify details and access full prescribing information.

Pills that start with D

NamePrimary useDrug classTypical dose & form
DiazepamAnxiety, seizures, muscle spasmBenzodiazepine2 mg, 5 mg, 10 mg tablets
DoxycyclineBacterial infectionsTetracycline antibiotic100 mg capsule, 50 mg tablet
DuloxetineDepression, nerve pain, anxietySNRI antidepressant30 mg, 60 mg capsules
DiltiazemHigh blood pressure, anginaCalcium channel blocker30 mg, 60 mg, 120 mg tablets; ER 120–360 mg
DonepezilAlzheimer disease memory symptomsCholinesterase inhibitor5 mg, 10 mg tablets
DigoxinHeart failure, atrial fibrillationCardiac glycoside0.125 mg, 0.25 mg tablets
DabigatranPrevent/treat blood clotsDirect oral anticoagulant75 mg, 150 mg capsules
DapagliflozinType 2 diabetesSGLT2 inhibitor5 mg, 10 mg tablets
DarunavirHIV treatmentProtease inhibitor (antiretroviral)400 mg, 800 mg tablets
DepakoteSeizures, bipolar disorder, migraine preventionAnticonvulsant/mood stabilizer125 mg, 250 mg, 500 mg tablets; ER forms
DantroleneMuscle spasm, malignant hyperthermia preventionSkeletal muscle relaxant25 mg, 50 mg capsules
DesloratadineAllergic rhinitis, hivesSecond-generation antihistamine5 mg tablets
DoxazosinBenign prostatic hyperplasia, hypertensionAlpha blocker1 mg, 2 mg, 4 mg tablets; ER 8 mg
DutasterideEnlarged prostate (BPH)5-alpha-reductase inhibitor0.5 mg capsules
DicyclomineIrritable bowel syndrome crampingAnticholinergic antispasmodic10 mg, 20 mg tablets
DoxepinDepression, insomnia, pruritusTricyclic antidepressant10 mg, 25 mg, 50 mg tablets
DemeclocyclineSIADH, bacterial infectionsTetracycline antibiotic150 mg, 300 mg capsules
DeferasiroxChronic iron overloadOral iron chelator125 mg, 250 mg tablets
DofetilideAtrial fibrillation rhythm controlClass III antiarrhythmic0.125 mg, 0.25 mg tablets
DesipramineDepressionTricyclic antidepressant25 mg, 50 mg, 100 mg tablets
DomperidoneNausea, gastroparesis, vomitingDopamine antagonist10 mg tablets
DiphenhydramineAllergy, insomnia, motion sicknessFirst-generation antihistamine25 mg, 50 mg tablets
DocusateConstipation, stool softenerStool softener (emollient)100 mg, 250 mg capsules
DexlansoprazoleHeartburn, GERDProton pump inhibitor30 mg, 60 mg capsules
DexmethylphenidateADHDCentral nervous system stimulant2.5 mg, 5 mg, 10 mg tablets
DronabinolNausea from chemo, appetite stimulantCannabinoid agonist2.5 mg, 5 mg, 10 mg capsules
DaclatasvirChronic hepatitis CNS5A inhibitor antiviral60 mg tablets
DabrafenibMelanoma with BRAF mutationBRAF kinase inhibitor50 mg, 75 mg capsules
DelafloxacinBacterial skin and lung infectionsFluoroquinolone antibiotic450 mg tablets
DextroamphetamineADHD, narcolepsyCentral nervous system stimulant5 mg, 10 mg, 15 mg tablets
DesvenlafaxineDepressionSNRI antidepressant50 mg, 100 mg tablets
DarifenacinOveractive bladderMuscarinic receptor antagonist7.5 mg, 15 mg tablets
DapsoneDermatitis herpetiformis, leprosy, pneumonia prophylaxisAntibiotic/anti-inflammatory50 mg, 100 mg tablets
DicloxacillinPenicillinase-producing staph infectionsPenicillin antibiotic250 mg, 500 mg capsules
DiclofenacPain, inflammationNSAID25 mg, 50 mg, 75 mg tablets
DalfampridineImprove walking in MSPotassium channel blocker10 mg tablets
DelavirdineHIV treatment (historic use)NNRTI antiretroviral100 mg tablets
DolutegravirHIV treatmentIntegrase inhibitor (antiretroviral)50 mg tablets
DipyridamoleStroke prevention (with aspirin), vasodilatorAntiplatelet/vasodilator25 mg capsules

Descriptions

Diazepam
Used for anxiety, seizures and muscle spasm; benzodiazepine. Side effects: drowsiness, dizziness, fatigue, memory problems, dependence.
Doxycycline
Treats many bacterial infections; antibiotic. Side effects: nausea, diarrhea, photosensitivity, yeast infections, upset stomach.
Duloxetine
Used for depression, anxiety, nerve pain; serotonin-norepinephrine reuptake inhibitor. Side effects: nausea, dry mouth, sleepiness, constipation, sweating.
Diltiazem
Treats high blood pressure and chest pain; calcium channel blocker. Side effects: dizziness, headache, edema, constipation, slow heartbeat.
Donepezil
Helps memory symptoms in Alzheimer disease; cholinesterase inhibitor. Side effects: nausea, diarrhea, insomnia, muscle cramps, vivid dreams.
Digoxin
Used for heart failure and atrial fibrillation; cardiac glycoside. Side effects: nausea, vision changes, dizziness, slow heartbeat, confusion.
Dabigatran
Prevents and treats clots; direct thrombin inhibitor. Side effects: bleeding, indigestion, bruising, anemia, stomach upset.
Dapagliflozin
Lowers blood sugar in type 2 diabetes; SGLT2 inhibitor. Side effects: urinary infections, genital infections, thirst, increased urination, dizziness.
Darunavir
Used in HIV therapy; protease inhibitor. Side effects: nausea, diarrhea, rash, increased liver enzymes, headache.
Depakote
Treats seizures, bipolar disorder, migraine prevention; anticonvulsant/mood stabilizer. Side effects: weight gain, tremor, hair loss, liver effects, nausea.
Dantrolene
Reduces severe muscle spasm; muscle relaxant. Side effects: drowsiness, weakness, dizziness, diarrhea, liver injury.
Desloratadine
Treats allergy symptoms and hives; antihistamine. Side effects: headache, dry mouth, fatigue, nausea.
Doxazosin
Relieves urinary obstruction in BPH and lowers blood pressure; alpha blocker. Side effects: dizziness, low blood pressure, fatigue, headache.
Dutasteride
Treats enlarged prostate by shrinking tissue; 5-alpha-reductase inhibitor. Side effects: decreased libido, erectile dysfunction, breast tenderness, ejaculation disorders.
Dicyclomine
Reduces bowel cramping in IBS; anticholinergic. Side effects: dry mouth, blurred vision, constipation, dizziness, urinary retention.
Doxepin
Used for depression, sleep problems, itching; tricyclic antidepressant. Side effects: drowsiness, dry mouth, constipation, weight gain, dizziness.
Demeclocycline
Used for some infections and low sodium (SIADH); tetracycline antibiotic. Side effects: photosensitivity, nausea, diarrhea, yeast infection, tooth discoloration (children).
Deferasirox
Helps remove excess iron in chronic overload; iron chelator. Side effects: nausea, rash, abdominal pain, increased liver enzymes, kidney effects.
Dofetilide
Used to restore/maintain normal heart rhythm; antiarrhythmic. Side effects: dizziness, headache, headache, risk of serious arrhythmia (requires monitoring), nausea.
Desipramine
Treats depression; tricyclic antidepressant. Side effects: dry mouth, constipation, drowsiness, blurred vision, urinary retention.
Domperidone
Used for nausea and slow stomach emptying (not FDA-approved in some countries). Side effects: dry mouth, abdominal cramps, headache, increased prolactin, rare heart rhythm effects.
Diphenhydramine
Treats allergy symptoms and helps sleep; antihistamine. Side effects: drowsiness, dry mouth, dizziness, blurred vision, constipation.
Docusate
Used to soften stools and ease constipation; stool softener. Side effects: stomach cramp, diarrhea, throat irritation.
Dexlansoprazole
Treats GERD and heartburn; proton pump inhibitor. Side effects: headache, diarrhea, nausea, abdominal pain, vitamin B12 deficiency long term.
Dexmethylphenidate
Treats ADHD by improving attention; stimulant. Side effects: decreased appetite, insomnia, nervousness, increased heart rate, stomachache.
Dronabinol
Used for chemo-related nausea and to stimulate appetite; cannabinoid. Side effects: dizziness, drowsiness, euphoria, dry mouth, paranoia.
Daclatasvir
Part of hepatitis C treatment; direct antiviral (NS5A inhibitor). Side effects: fatigue, headache, nausea, anemia (with some combinations).
Dabrafenib
Treats BRAF-mutated melanoma; targeted kinase inhibitor. Side effects: fever, fatigue, rash, joint pain, skin changes.
Delafloxacin
Treats certain skin and lung infections; fluoroquinolone antibiotic. Side effects: nausea, diarrhea, headache, tendon pain, dizziness.
Dextroamphetamine
Used for ADHD and narcolepsy; stimulant. Side effects: insomnia, decreased appetite, increased heart rate, anxiety, dry mouth.
Desvenlafaxine
Treats major depressive disorder; SNRI. Side effects: nausea, dry mouth, dizziness, insomnia, sweating.
Darifenacin
Treats urinary urgency and frequency; antimuscarinic. Side effects: dry mouth, constipation, blurred vision, urinary retention.
Dapsone
Used for certain skin conditions and infections; antibiotic. Side effects: hemolysis (esp. G6PD), nausea, headache, methemoglobinemia.
Dicloxacillin
Treats staph and other bacterial infections; penicillin antibiotic. Side effects: diarrhea, rash, nausea, allergic reactions.
Diclofenac
Treats pain and inflammation; nonsteroidal anti-inflammatory drug. Side effects: stomach upset, heartburn, fluid retention, increased blood pressure, kidney effects.
Dalfampridine
Can improve walking in multiple sclerosis; K+ channel blocker. Side effects: dizziness, insomnia, urinary tract infection, seizures (rare).
Delavirdine
Older HIV drug; non-nucleoside reverse transcriptase inhibitor. Side effects: rash, nausea, headache, liver enzyme elevations.
Dolutegravir
Used for HIV treatment; integrase strand transfer inhibitor. Side effects: insomnia, headache, weight gain, nausea.
Dipyridamole
Used with aspirin for stroke prevention and as vasodilator; antiplatelet. Side effects: headache, dizziness, nausea, flushing.
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