This list includes 56 Medications that start with T, from “Tacrolimus” to “Triptorelin”. They include antibiotics, immunosuppressants, hormones and nervous-system agents used in many common treatments. Many are commonly prescribed worldwide.
Medications that start with T are prescription drugs that cover a wide range of medical uses, from infection control to chronic disease management. A notable example is Tacrolimus, first found in soil bacteria and now vital in organ transplant care.
Below you’ll find the table with Generic name, Drug class, Common uses, Common side effects, and Brand names.
Generic name: The active drug name you’ll find on prescriptions; use it to identify the medicine across brands.
Drug class: The category that groups similar medicines, helping you compare effects and expected uses quickly.
Common uses: Typical conditions or symptoms the drug treats, so you see why a medicine might be prescribed.
Common side effects: Frequent reactions people report, useful to watch for and discuss with your care team.
Brand names: Trademarked names you may see at the pharmacy, which help you match generics to marketed products.
Last updated: September 28, 2025
Medical disclaimer: For informational purposes only; not a substitute for professional medical guidance.
Medications that start with T
| Name | Brand names | Drug class | Common side effects |
|---|---|---|---|
| Tadalafil | Cialis, Adcirca | PDE5 inhibitor | Headache, flushing, dyspepsia |
| Tacrolimus | Prograf, Protopic | Calcineurin inhibitor immunosuppressant | Nephrotoxicity, tremor, infections |
| Tamoxifen | Nolvadex | Selective estrogen receptor modulator (SERM) | Hot flashes, thromboembolism |
| Tamsulosin | Flomax | Alpha-1 blocker | Dizziness, orthostatic hypotension, ejaculation disorder |
| Terbinafine | Lamisil | Allylamine antifungal | Liver enzyme changes, taste disturbance, GI upset |
| Terazosin | Hytrin | Alpha-1 blocker | Dizziness, hypotension |
| Tenofovir disoproxil fumarate | Viread | Nucleotide reverse transcriptase inhibitor (NRTI) | Renal toxicity, decreased bone density |
| Tenofovir alafenamide (TAF) | Vemlidy, Descovy (combos) | NRTI prodrug | Weight gain, nausea, minimal renal effects |
| Telmisartan | Micardis | Angiotensin II receptor blocker (ARB) | Hyperkalemia, dizziness |
| Temazepam | Restoril | Benzodiazepine hypnotic | Drowsiness, dependence, cognitive impairment |
| Temsirolimus | Torisel | mTOR inhibitor | Rash, hyperglycemia, myelosuppression |
| Tetracycline | Sumycin | Tetracycline antibiotic | Photosensitivity, GI upset, tooth discoloration (children) |
| Tigecycline | Tygacil | Glycylcycline antibiotic | Nausea, vomiting, hepatic dysfunction |
| Timolol | Timoptic, Betimol | Nonselective beta blocker | Bradycardia, fatigue, eye irritation (ophthalmic) |
| Tiotropium | Spiriva | Long-acting muscarinic antagonist | Dry mouth, constipation |
| Tizanidine | Zanaflex | Alpha-2 adrenergic agonist muscle relaxant | Drowsiness, hypotension, dry mouth |
| Tolterodine | Detrol | Antimuscarinic bladder agent | Dry mouth, constipation, blurred vision |
| Topiramate | Topamax | Anticonvulsant, migraine prophylaxis | Cognitive slowing, paresthesia, weight loss |
| Tramadol | Ultram, ConZip | Opioid analgesic, SNRI activity | Nausea, dizziness, constipation, risk of dependence |
| Trastuzumab | Herceptin | Monoclonal antibody anti-HER2 | Cardiotoxicity, infusion reactions |
| Travoprost | Travatan | Prostaglandin analogue (ophthalmic) | Eye redness, eyelash growth, iris pigmentation |
| Treprostinil | Remodulin, Tyvaso, Orenitram | Prostacyclin analogue | Headache, jaw pain, flushing |
| Triamcinolone | Kenalog, Aristocort | Corticosteroid (topical, injectable) | Skin thinning, hyperglycemia, increased infection risk |
| Triamterene | Dyrenium | Potassium-sparing diuretic | Hyperkalemia, kidney stones |
| Trifluridine | Viroptic | Antiviral ophthalmic | Eye irritation, blurred vision |
| Trimetazidine | Vastarel | Metabolic antianginal agent | Nausea, headache |
| Trimethoprim | Primsol | Antibiotic (folate pathway inhibitor) | Rash, hyperkalemia |
| Tretinoin | Retin-A | Topical retinoid | Skin irritation, photosensitivity |
| Ticagrelor | Brilinta | P2Y12 receptor antagonist (antiplatelet) | Dyspnea, bleeding |
| Ticlopidine | Ticlid | Antiplatelet agent | Neutropenia, bleeding |
| Tolnaftate | Tinactin | Topical antifungal | Local irritation, burning |
| Tioconazole | Vagistat-1, Monistat Derm | Topical imidazole antifungal | Local irritation |
| Tolvaptan | Samsca | Vasopressin V2 receptor antagonist | Thirst, polyuria, potential liver injury |
| Torasemide | Demadex | Loop diuretic | Electrolyte imbalance, hypotension |
| Tranylcypromine | Parnate | Monoamine oxidase inhibitor (MAOI) | Insomnia, hypertensive crisis with tyramine |
| Trifluoperazine | Stelazine | Typical antipsychotic (phenothiazine) | Extrapyramidal symptoms, sedation |
| Ticarcillin | Ticar | Extended-spectrum penicillin antibiotic | Allergic reactions, bleeding risk |
| Tobramycin | Tobrex, Nebcin | Aminoglycoside antibiotic | Nephrotoxicity, ototoxicity |
| Tolbutamide | Orinase | First-generation sulfonylurea | Hypoglycemia, weight gain |
| Topotecan | Hycamtin | Topoisomerase I inhibitor chemotherapy | Myelosuppression, nausea |
| Tofacitinib | Xeljanz | JAK inhibitor | Infections, lipid elevations, cytopenias |
| Trazodone | Desyrel | Serotonin antagonist and reuptake inhibitor (SARI) | Sedation, orthostatic hypotension |
| Trimipramine | Surmontil | Tricyclic antidepressant (TCA) | Anticholinergic effects, sedation |
| Testosterone | AndroGel, Depo-Testosterone | Androgen hormone replacement | Acne, erythrocytosis, prostate effects |
| Telbivudine | Tyzeka | Nucleoside analog antiviral | Myopathy, peripheral neuropathy, elevated LFTs |
| Teniposide | Vumon | Topoisomerase II inhibitor chemotherapy | Myelosuppression, alopecia |
| Teriparatide | Forteo | Recombinant parathyroid hormone analog | Hypercalcemia, leg cramps |
| Terconazole | Terazol | Azole antifungal (vaginal) | Local irritation, burning |
| Tocilizumab | Actemra | IL-6 receptor antagonist biologic | Infections, elevated liver enzymes |
| Tolcapone | Tasmar | COMT inhibitor (Parkinson’s) | Hepatotoxicity, dyskinesia |
| Tolmetin | Tolectin | Nonsteroidal anti-inflammatory drug (NSAID) | GI upset, renal impairment |
| Triptorelin | Trelstar, Decapeptyl | GnRH agonist | Hot flashes, injection site reactions |
| Tafenoquine | Krintafel, Arakoda | Antimalarial (8‑aminoquinoline) | Hemolysis in G6PD deficiency, GI upset |
| Tapentadol | Nucynta | Opioid analgesic with norepinephrine reuptake inhibition | Nausea, dizziness, constipation |
| Teneligliptin | Tenelia (markets vary) | DPP-4 inhibitor (antidiabetic) | Nasopharyngitis, headache |
| Tobramycin/dexamethasone combos excluded | N/A | N/A | N/A |
Descriptions
Tadalafil
Used for erectile dysfunction and pulmonary arterial hypertension; relaxes smooth muscle to improve blood flow.
Tacrolimus
Prevents transplant rejection and treats severe eczema; suppresses immune response.
Tamoxifen
Hormone therapy for ER-positive breast cancer and prevention; blocks estrogen in breast tissue.
Tamsulosin
Relaxes prostate and bladder neck muscles to improve urine flow in BPH.
Terbinafine
Oral or topical treatment for fungal skin and nail infections.
Terazosin
Used for BPH and hypertension by relaxing vascular and prostatic smooth muscle.
Tenofovir disoproxil fumarate
Antiviral for HIV and chronic hepatitis B; inhibits viral replication.
Tenofovir alafenamide (TAF)
Newer tenofovir formulation with lower renal and bone toxicity; for HIV and HBV.
Telmisartan
Treats hypertension and reduces cardiovascular risk; relaxes blood vessels.
Temazepam
Short-term treatment for insomnia; promotes sleep by enhancing GABA.
Temsirolimus
IV therapy for advanced renal cell carcinoma; inhibits cell growth pathways.
Tetracycline
Broad-spectrum antibiotic used for various infections; avoid in pregnancy and young children.
Tigecycline
IV antibiotic for complicated skin and intra-abdominal infections; broad coverage.
Timolol
Used systemically or as eyedrops for glaucoma to lower intraocular pressure.
Tiotropium
Inhaled maintenance therapy for COPD; relaxes airway smooth muscle.
Tizanidine
Reduces muscle spasticity after injury or in neurological disease.
Tolterodine
Treats overactive bladder by decreasing bladder contractions.
Topiramate
Used for seizures and migraine prevention; affects multiple neural pathways.
Tramadol
Oral pain reliever for moderate to moderately severe pain with serotonin effects.
Trastuzumab
Targeted therapy for HER2-positive breast and gastric cancers.
Travoprost
Once-daily eyedrop to lower intraocular pressure in glaucoma.
Treprostinil
Vasodilator for pulmonary arterial hypertension via IV, inhaled, or oral routes.
Triamcinolone
Used for inflammation, allergic reactions, and dermatologic conditions.
Triamterene
Used with other diuretics to treat hypertension and edema while sparing potassium.
Trifluridine
Topical eye drop for herpetic keratitis; inhibits viral DNA synthesis.
Trimetazidine
Used in some countries for angina by improving myocardial energy metabolism.
Trimethoprim
Common oral antibiotic for urinary tract infections.
Tretinoin
Topical for acne and photoaging; speeds skin cell turnover.
Ticagrelor
Oral antiplatelet used after acute coronary syndromes to prevent clots.
Ticlopidine
Older antiplatelet used to prevent stroke; less used due to safety concerns.
Tolnaftate
OTC antifungal for athlete’s foot, ringworm, jock itch.
Tioconazole
Used for vulvovaginal candidiasis and topical fungal infections.
Tolvaptan
Oral treatment for hyponatremia and autosomal dominant polycystic kidney disease.
Torasemide
Treats edema and hypertension; similar to furosemide with longer action.
Tranylcypromine
Antidepressant reserved for refractory depression; requires dietary restrictions.
Trifluoperazine
Treats schizophrenia and severe behavioral problems.
Ticarcillin
IV antibiotic for serious Gram-negative infections; often paired with beta-lactamase inhibitor.
Tobramycin
Used IV for severe Gram-negative infections and as topical/ophthalmic agent.
Tolbutamide
Older oral diabetes medication; stimulates insulin release.
Topotecan
IV or oral chemotherapy for ovarian and small-cell lung cancer.
Tofacitinib
Oral immunomodulator for rheumatoid arthritis, ulcerative colitis, psoriatic arthritis.
Trazodone
Antidepressant often used off-label for insomnia due to sedating effects.
Trimipramine
Older antidepressant with sedative properties for depression and insomnia.
Testosterone
Hormone therapy for male hypogonadism and select other indications.
Telbivudine
Oral antiviral for chronic hepatitis B in some regions.
Teniposide
Chemotherapy agent for certain leukemias and malignancies.
Teriparatide
Daily injectable for severe osteoporosis to stimulate bone formation.
Terconazole
Vaginal antifungal for vulvovaginal candidiasis.
Tocilizumab
Used for rheumatoid arthritis and cytokine release syndrome.
Tolcapone
Adjunctive Parkinson’s drug; requires liver monitoring.
Tolmetin
Treats pain and inflammation in arthritis.
Triptorelin
Used for prostate cancer, endometriosis, precocious puberty.
Tafenoquine
Single-dose radical cure or prophylaxis for malaria; requires G6PD testing.
Tapentadol
Oral analgesic for moderate to severe pain with dual mechanism.
Teneligliptin
Oral diabetes drug approved in some countries to lower blood glucose.
Tobramycin/dexamethasone combos excluded
N/A