Terazosin: Drug information

For additional information see "Terazosin: Patient drug information" and "Terazosin: Pediatric drug information"

For abbreviations, symbols, and age group definitions show table

Brand Names: Canada

APO-Terazosin;
PMS-Terazosin;
TEVA-Terazosin

Pharmacologic Category

Alpha ₁ Blocker;
Antihypertensive

Dosing: Adult

Note: If therapy is discontinued for several days or more, consider beginning with initial dose and retitrate as needed, due to risk of orthostatic hypotension.

Benign prostatic hyperplasia

Benign prostatic hyperplasia (monotherapy or combination therapy):

Note : In patients with moderate to severe predominant storage lower urinary tract symptoms, use in combination with beta-3 agonist or anticholinergic agent. In patients with a significantly enlarged prostate (prostate volume >30 mL, prostate-specific antigen >1.5 ng/mL, or palpable prostate enlargement on digital rectal exam), use in combination with 5-alpha reductase inhibitor (Ref).

Oral: Initial: 1 mg once daily at bedtime; titrate slowly every few weeks (eg, to 2 mg, then 5 mg, then 10 mg) based on response and tolerability; usual dose: 10 mg once daily; if no response after 4 to 6 weeks of 10 mg once daily, may increase to a maximum dose of 20 mg once daily.

Hypertension

Hypertension (alternative agent):

Note: Not recommended for initial management, but may be considered as additional therapy for resistant hypertension in patients who do not respond adequately to combination therapy with preferred agents (Ref).

Oral: Initial: 1 mg once daily; titrate gradually, as needed, based on response and tolerability up to 20 mg/day in 1 or 2 divided doses (Ref). Note: Administration at bedtime may help limit orthostasis.

Ureteral stone(s) expulsion

Ureteral stone(s) expulsion (off-label use):

Note: Consider for use in patients with ureteral stones >5 and ≤10 mm (Ref). Although most evidence exists for distal ureteral stones, given the low side effect profile of alpha-blockers, may consider use in patients with stones in any location of ureter (Ref). Additionally, may consider for use after shock wave lithotripsy to help pass stone fragments (Ref). A uroselective alpha blocker (eg, tamsulosin) may be preferred to decrease risk of hypotension (Ref).

Oral: 2 to 5 mg once daily at bedtime until stone passage or for up to 4 weeks (Ref).

Dosage adjustment for concomitant therapy: Significant drug interactions exist, requiring dose/frequency adjustment or avoidance. Consult drug interactions database for more information.

Dosing: Kidney Impairment: Adult

The renal dosing recommendations are based upon the best available evidence and clinical expertise. Senior Editorial Team: Bruce Mueller, PharmD, FCCP, FASN, FNKF; Jason A. Roberts, PhD, BPharm (Hons), B App Sc, FSHP, FISAC; Michael Heung, MD, MS.

Altered kidney function: No dosage adjustment necessary for any degree of kidney dysfunction (Ref).

Hemodialysis, intermittent (thrice weekly): Dialyzable (~10%) (Ref): No supplemental dose or dosage adjustment necessary (Ref).

Peritoneal dialysis: Unlikely to be significantly dialyzed (highly protein bound): No dosage adjustment necessary (Ref).

CRRT: No dosage adjustment necessary (Ref).

PIRRT (eg, sustained, low-efficiency diafiltration): No dosage adjustment necessary (Ref).

Dosing: Hepatic Impairment: Adult

There are no dosage adjustments provided in the manufacturer’s labeling.

Dosing: Older Adult

Avoid use for hypertension treatment (Ref). Refer to adult dosing for other indications.

Dosing: Pediatric

(For additional information see "Terazosin: Pediatric drug information")

Hypertension

Hypertension:

Note: Current pediatric blood pressure guidelines do not include terazosin for the management of pediatric hypertension; other agents are preferred (Ref).

Children and Adolescents: Limited data available: Oral: Initial: 1 mg once daily typically administered at bedtime; slowly increase dose to achieve desired blood pressure as tolerated; maximum daily dose: 20 mg/day (Ref). Note: If drug is discontinued for longer than several days, consider beginning with initial dose and retitrate as needed due to risk of postural hypotension and syncope.

Dosage adjustment for concomitant therapy: Significant drug interactions exist, requiring dose/frequency adjustment or avoidance. Consult drug interactions database for more information.

Dosing: Kidney Impairment: Pediatric

Altered kidney function: There are no pediatric-specific dosage recommendations. Based on experience in adult patients, no dosage adjustment is likely necessary.

Hemodialysis: Based on adult information, 10% dialyzable; supplemental dose not necessary.

Dosing: Hepatic Impairment: Pediatric

There are no dosage adjustments provided in the manufacturer’s labeling.

Adverse Reactions

The following adverse drug reactions and incidences are derived from product labeling unless otherwise specified. Adverse reactions reported in adults.

>10%: Nervous system: Asthenia (≤11%), dizziness (9% to 19%), fatigue (≤11%), lassitude (≤11%)

1% to 10%:

Cardiovascular: Orthostatic hypotension (1% to 5%), palpitations (4%), peripheral edema (6%), tachycardia (2%)

Gastrointestinal: Nausea (2% to 4%)

Genitourinary: Impotence (2%)

Nervous system: Drowsiness (4% to 5%), paresthesia (3%), vertigo (1%)

Neuromuscular & skeletal: Back pain (2%), limb pain (4%)

Ophthalmic: Amblyopia (≤1%), blurred vision (≤2%)

Respiratory: Dyspnea (2% to 3%), nasal congestion (≤6%), rhinitis (≤2%), sinusitis (3%)

<1%:

Cardiovascular: Syncope

Endocrine & metabolic: Weight gain

Frequency not defined:

Nervous system: Headache

Miscellaneous: Fever

Postmarketing:

Cardiovascular: Atrial fibrillation

Dermatologic: Acute generalized exanthematous pustulosis (Speck 2008), lichenoid eruption (Koh 2008)

Genitourinary: Priapism

Hematologic & oncologic: Thrombocytopenia

Hypersensitivity: Anaphylaxis, hypersensitivity reaction

Ophthalmic: Intraoperative floppy iris syndrome (Venkatesh 2007)

Contraindications

Hypersensitivity to terazosin or any component of the formulation

Warnings/Precautions

Concerns related to adverse effects:

• CNS depression: May cause CNS depression, which may impair physical or mental abilities; patients must be cautioned about performing tasks that require mental alertness (eg, operating machinery or driving).

• Floppy iris syndrome: Intraoperative floppy iris syndrome has been observed in cataract surgery patients who were on or were previously treated with alpha₁-blockers; there appears to be no benefit in discontinuing alpha-blocker therapy prior to surgery. May require modifications to surgical technique.

• Orthostatic hypotension/syncope: May cause significant orthostatic hypotension and syncope, especially with first dose or first few days of therapy; anticipate a similar effect if therapy is interrupted for a few days, if dosage is rapidly increased, or if another antihypertensive drug (particularly vasodilators) or a PDE-5 inhibitor is introduced.

• Priapism: Priapism has been associated with use (rarely); seek immediate medical assistance for erections lasting longer than 4 hours.

Disease-related concerns:

• Heart failure: In a scientific statement from the American Heart Association, terazosin has been determined to be an agent that may exacerbate underlying myocardial dysfunction (magnitude: moderate) (AHA [Page 2016]).

Other warning/precautions:

• Appropriate use: BPH: Rule out prostatic carcinoma before beginning therapy (many symptoms of BPH and prostate cancer are similar).

Dosage Forms: US

Excipient information presented when available (limited, particularly for generics); consult specific product labeling.

Capsule, Oral:

Generic: 1 mg, 2 mg, 5 mg, 10 mg

Generic Equivalent Available: US

Yes

Pricing: US

Capsules (Terazosin HCl Oral)

1 mg (per each): $1.61

2 mg (per each): $1.61

5 mg (per each): $1.61

10 mg (per each): $1.61

Disclaimer: A representative AWP (Average Wholesale Price) price or price range is provided as reference price only. A range is provided when more than one manufacturer's AWP price is available and uses the low and high price reported by the manufacturers to determine the range. The pricing data should be used for benchmarking purposes only, and as such should not be used alone to set or adjudicate any prices for reimbursement or purchasing functions or considered to be an exact price for a single product and/or manufacturer. Medi-Span expressly disclaims all warranties of any kind or nature, whether express or implied, and assumes no liability with respect to accuracy of price or price range data published in its solutions. In no event shall Medi-Span be liable for special, indirect, incidental, or consequential damages arising from use of price or price range data. Pricing data is updated monthly.

Dosage Forms: Canada

Excipient information presented when available (limited, particularly for generics); consult specific product labeling.

Tablet, Oral:

Generic: 1 mg, 2 mg, 5 mg, 10 mg

Administration: Adult

Oral: Administer at the same time each day.

Administration: Pediatric

Oral: Administer without regard to meals at the same time each day.

Use: Labeled Indications

Benign prostatic hyperplasia: Treatment of symptomatic benign prostatic hyperplasia (BPH).

Hypertension: Management of hypertension. Note: Alpha blockers are not recommended as first line therapy (ACC/AHA [Whelton 2018]).

Use: Off-Label: Adult

Ureteral stone(s), expulsion

Medication Safety Issues

Older Adult: High-Risk Medication:

Beers Criteria: Terazosin is identified in the Beers Criteria as a potentially inappropriate medication in patients 65 years and older due to its high risk of orthostatic hypotension. Avoid use for hypertension treatment (alternative agents have superior risk:benefit profiles) (Beers Criteria [AGS 2023]).

Metabolism/Transport Effects

None known.

Drug Interactions

Note: Interacting drugs may not be individually listed below if they are part of a group interaction (eg, individual drugs within “CYP3A4 Inducers [Strong]” are NOT listed). For a complete list of drug interactions by individual drug name and detailed management recommendations, use the drug interactions program by clicking on the “Launch drug interactions program” link above.

Alpha-/Beta-Agonists: Alpha1-Blockers may diminish the therapeutic effect of Alpha-/Beta-Agonists. Risk C: Monitor therapy

Alpha1-Blockers: May enhance the antihypertensive effect of other Alpha1-Blockers. Risk X: Avoid combination

Amifostine: Blood Pressure Lowering Agents may enhance the hypotensive effect of Amifostine. Management: When used at chemotherapy doses, hold blood pressure lowering medications for 24 hours before amifostine administration. If blood pressure lowering therapy cannot be held, do not administer amifostine. Use caution with radiotherapy doses of amifostine. Risk D: Consider therapy modification

Amphetamines: May diminish the antihypertensive effect of Antihypertensive Agents. Risk C: Monitor therapy

Antihypertensive Agents: May enhance the hypotensive effect of Terazosin. Risk C: Monitor therapy

Antipsychotic Agents (Second Generation [Atypical]): Blood Pressure Lowering Agents may enhance the hypotensive effect of Antipsychotic Agents (Second Generation [Atypical]). Risk C: Monitor therapy

Arginine: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy

Barbiturates: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy

Benperidol: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy

Brigatinib: May diminish the antihypertensive effect of Antihypertensive Agents. Brigatinib may enhance the bradycardic effect of Antihypertensive Agents. Risk C: Monitor therapy

Brimonidine (Topical): May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy

Bromperidol: May diminish the hypotensive effect of Blood Pressure Lowering Agents. Blood Pressure Lowering Agents may enhance the hypotensive effect of Bromperidol. Risk X: Avoid combination

Dapoxetine: May enhance the orthostatic hypotensive effect of Alpha1-Blockers. Risk C: Monitor therapy

Dexmethylphenidate: May diminish the therapeutic effect of Antihypertensive Agents. Risk C: Monitor therapy

Diazoxide: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy

DULoxetine: Blood Pressure Lowering Agents may enhance the hypotensive effect of DULoxetine. Risk C: Monitor therapy

Flunarizine: May enhance the therapeutic effect of Antihypertensive Agents. Risk C: Monitor therapy

Herbal Products with Blood Pressure Increasing Effects: May diminish the antihypertensive effect of Antihypertensive Agents. Risk C: Monitor therapy

Herbal Products with Blood Pressure Lowering Effects: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy

Hypotension-Associated Agents: Blood Pressure Lowering Agents may enhance the hypotensive effect of Hypotension-Associated Agents. Risk C: Monitor therapy

Iloperidone: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy

Isocarboxazid: May enhance the antihypertensive effect of Antihypertensive Agents. Risk X: Avoid combination

Levodopa-Foslevodopa: Blood Pressure Lowering Agents may enhance the hypotensive effect of Levodopa-Foslevodopa. Risk C: Monitor therapy

Loop Diuretics: May enhance the hypotensive effect of Antihypertensive Agents. Risk C: Monitor therapy

Lormetazepam: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy

Methylphenidate: May diminish the antihypertensive effect of Antihypertensive Agents. Risk C: Monitor therapy

Midodrine: Alpha1-Blockers (Nonselective) may diminish the therapeutic effect of Midodrine. Risk C: Monitor therapy

Molsidomine: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy

Nicorandil: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy

Nitroprusside: Blood Pressure Lowering Agents may enhance the hypotensive effect of Nitroprusside. Risk C: Monitor therapy

Obinutuzumab: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Management: Consider temporarily withholding blood pressure lowering medications beginning 12 hours prior to obinutuzumab infusion and continuing until 1 hour after the end of the infusion. Risk D: Consider therapy modification

Pentoxifylline: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy

Phenylephrine (Systemic): Alpha1-Blockers may diminish the vasoconstricting effect of Phenylephrine (Systemic). Risk C: Monitor therapy

Pholcodine: Blood Pressure Lowering Agents may enhance the hypotensive effect of Pholcodine. Risk C: Monitor therapy

Phosphodiesterase 5 Inhibitors: May enhance the hypotensive effect of Alpha1-Blockers (Nonselective). Management: Ensure patient is stable on one agent prior to initiating the other, and always initiate combination using the lowest possible dose of the drug being added. When tadalafil is used for treatment of BPH, concurrent alpha 1-blockers are not recommended. Risk D: Consider therapy modification

Prostacyclin Analogues: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy

Quinagolide: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy

Rilmenidine: Alpha1-Blockers may enhance the hypotensive effect of Rilmenidine. Risk C: Monitor therapy

Reproductive Considerations

Medications considered acceptable for the treatment of chronic hypertension during pregnancy may generally be continued in patients trying to conceive. Terazosin is not considered a preferred agent for use in pregnant patients; consider transitioning to a preferred agent in patients planning to become pregnant (ACC/AHA [Whelton 2018]; ACOG 2019; NICE 2019).

Pregnancy Considerations

Chronic maternal hypertension is also associated with adverse events in the fetus/infant. Chronic maternal hypertension may increase the risk of birth defects, low birth weight, premature delivery, stillbirth, and neonatal death. Actual fetal/neonatal risks may be related to the duration and severity of maternal hypertension. Untreated chronic hypertension may also increase the risks of adverse maternal outcomes, including gestational diabetes, preeclampsia, delivery complications, stroke, and myocardial infarction (ACOG 2019).

Patients with preexisting hypertension may continue their medication during pregnancy unless contraindications exist (ESC [Regitz-Zagrosek 2018]). When treatment of chronic hypertension during pregnancy is indicated, agents other than terazosin may be preferred (ACOG 2019; ESC [Cífková 2020]; ESC [Regitz-Zagrosek 2018]; SOGC [Magee 2022]).

Although alpha-blockers may be used to facilitate ureteral stone expulsion, treatments other than terazosin are preferred if stone removal is needed during pregnancy (AUA/ES [Assimos 2016a]; Juliebø-Jones 2022; Lee 2021; Lloyd 2016).

Breastfeeding Considerations

It is not known if terazosin is present in breast milk.

The manufacturer recommends that caution be exercised when administering terazosin to patients who are breastfeeding.

Monitoring Parameters

Blood pressure.

Benign prostatic hyperplasia: International Prostate Symptom Score (baseline and 4 to 12 weeks after treatment initiation); urinalysis (baseline); objective and subjective signs of relief of benign prostatic hyperplasia and lower urinary tract symptoms (AUA [Lerner 2021]).

Mechanism of Action

Alpha₁-specific blocking agent with minimal alpha₂ effects; this allows peripheral postsynaptic blockade, with the resultant decrease in arterial tone, while preserving the negative feedback loop which is mediated by the peripheral presynaptic alpha₂-receptors; terazosin relaxes the smooth muscle of the bladder neck, thus reducing bladder outlet obstruction

Pharmacokinetics (Adult Data Unless Noted)

Onset of action: Antihypertensive effect: 15 minutes; Peak effect: Antihypertensive effect: 2 to 3 hours

Duration of action: Antihypertensive effect: 24 hours

Absorption: Rapid and complete

Protein binding: 90% to 94%

Metabolism: Hepatic; minimal first-pass

Half-life elimination: ~12 hours

Time to peak, plasma: ~1 hour; delayed ~40 minutes with food

Excretion: Feces (~60%, ~20% as unchanged drug); urine (~40%, ~10% as unchanged drug)

Pharmacokinetics: Additional Considerations (Adult Data Unless Noted)

Older adult: Plasma clearance was decreased by 31.7% and half-life was 14 hours in patients ≥70 years.

Brand Names: International

International Brand Names by Country

For country code abbreviations (show table)

(AE) United Arab Emirates: Apo terazosin | Itrin | Terazosin;
(AR) Argentina: Andrin | Benaprost | Blavin | Comprimix | Eglidon | Flumarc | Fosfomik | Geriprost | Isontyn | Proxatan | Terazosina northia | Terazosina Vannier | Viblan;
(AT) Austria: Terazosin | Terazosin Alternova | Terazosin arcana | Terazosin ratiopharm | Urocard | Uroflo | Vicard;
(AU) Australia: Hytrin;
(BD) Bangladesh: Hytrin | Prostol | Rosyn | Terazon;
(BE) Belgium: Hytrin | Terasosine | Terazosab | Terazosabb | Terazosine eurogenerics | Terazosine merck-generics | Terazosine ratiopharm | Uro-hytrin;
(BF) Burkina Faso: Xeliprost;
(BR) Brazil: Adecur | Cloridrato de terazosina | Hytrin;
(CH) Switzerland: Hytrin bph;
(CI) Côte d'Ivoire: Xeliprost;
(CL) Chile: Adecur | Hytrin;
(CN) China: Biaolin | Gao te ling | Hytrin | Li shan | Lie gao | Luo di er | Ma sha ni | Man xin lin | Shi ai te | Tai le | Terazosin | Yue ke | Zheng shu;
(CO) Colombia: Hytrin | Terazosina | Tructum;
(CZ) Czech Republic: Hytrin | Kornam;
(DE) Germany: Flotrin | Flotrin max | Flotrin pro | Flotrin start | Flotrin uro | Heitrin | Hytrin | Tera | Tera tad | Terablock | Teranar | Teranar init | Terazid | Terazoflo | Terazosin | Terazosin - 1A pharma | Terazosin Acis | Terazosin al | Terazosin Aristo | Terazosin Awd | Terazosin CT | Terazosin Hexal | Terazosin ratiopharm | Terazosin stada | Terazosin Start | Terazosin uropharm;
(DO) Dominican Republic: Hytrin | Terasin | Tezosyn | Tiflox;
(EC) Ecuador: Centrax | Hytrin | Terasin;
(EG) Egypt: Itrin | Prostasin | Teracin | Terazin;
(ES) Spain: Alfaprost | Deflox | Magnurol | Sutif | Teraumon | Terazosina alter | Terazosina Cinfa | Terazosina kern | Terazosina mabo | Terazosina Normon | Terazosina qualix | Terazosina rubio | Terazosina Teva | Zayasel;
(FR) France: Dysalfa | Hytrine | Terazosine Biogaran | Terazosine merck | Terazosine ratiopharm | Terazosine teva;
(GB) United Kingdom: Hytrin | Hytrin bph | Terazosin | Terazosin arrow | Terazosin cox | Terazosin Focus | Terazosin kent | Terazosin zanza;
(GR) Greece: Hytrin;
(HK) Hong Kong: Apo terazosin | Hytrin | Kozosin | Pms-terazosin | Teradrin | Terapress | Terasin | Terazo | Terazosin;
(HU) Hungary: Hyron | Hytrin | Kornam | Setegis | Terstat;
(ID) Indonesia: Hytrin | Hytroz | Terazosin;
(IE) Ireland: Benph | Hytrin | Terazosin;
(IL) Israel: Hytrin;
(IN) India: Hytrin | Olyster | Teradip | Terakare | Teralfa | Terapress | Teraz | Terrakare | Unoter | Vicard-t | Zytrin;
(IT) Italy: Extersin | Ezosina | Ibiprovir | Itrin | Prostatil | Terafluss | Teraprost | Terazosina | Terazosina doc | Terazosina eg | Terazosina mgi | Terazosina sandoz | Terazosina tad pharma | Unoprost | Urodie | Uroflus;
(JO) Jordan: Hytrin | Terastat;
(JP) Japan: Hytracin | Vasomet nikken;
(KR) Korea, Republic of: Anaphen | Auskosin | Basozosin | Biphanti | Hanmi terazosin hcl | Hatra | Hiperin | Hitesin | Hizosin | Hydrin | Hysorin | Hytera | Hytrin | Kup teranex | Neotrin | Neotrine | Newrazosin | Panpress | Protera | Prozosin | Santesin | Teracare | Teradin | Teraforce | Teragen | Teralusin | Teramed | Teramin | Teranin | Teraon | Terapam | Terasan | Terasin | Terasta | Teratin | Teratonin | Terazine | Terazo | Terazol | Terazon | Terazosin | Teresin | Teropine | Teros | Terosin | Tetrin | Tezocin | Tezosin | Tracin | Trasin | Tzc | Unitrin | Urotrin | Vasozosin;
(KW) Kuwait: Itrin;
(LB) Lebanon: Itrin;
(LT) Lithuania: Flotrin pro | Heitrin | Hytrin | Terazosin;
(LU) Luxembourg: Hytrin;
(LV) Latvia: Hytrin | Teraumon;
(MA) Morocco: Terazosine;
(MX) Mexico: Adecur | Hytrin | Romaken | Terazosina gi ken.;
(MY) Malaysia: Apo terazosin | Conmy | Hytrin | Ralsin;
(NL) Netherlands: Hytrin | Terazosine;
(NO) Norway: Hytrin | Sinalfa;
(NZ) New Zealand: Arrow terazosin | Hytrin | Terazosin;
(PE) Peru: Adenex | Fazodin | Hytrin | Prostanorm | Prostezosin | Teraliv | Teraprost | Terazosina | Terozosina;
(PH) Philippines: Conmy | Hykor | Hytrin | Hyzin | Lotencin | Prostera | Ritemed Terazosin | Terozin;
(PK) Pakistan: Hytrin | Hyzosin | Lopros | Rozacin;
(PL) Poland: Hytrin | Kornam | Setegis;
(PR) Puerto Rico: Hytrin | Terazosin | Terazosin HCL;
(PT) Portugal: Hytrin | Terazosina;
(PY) Paraguay: Adecur | Andrin | Isontyn | Presoless | Tarnil;
(RO) Romania: Hytrin;
(RU) Russian Federation: Kornam | Setegis | Terazosin | Terazosin Teva | Terazozin;
(SA) Saudi Arabia: Apo terazosin | Itrin | Pms-terazosin;
(SE) Sweden: Hytrinex | Sinalfa | Terazosin Alternova | Terazosin Copyfarm | Terazosin Hexal | Terazosin Mylan | Terazosin stada;
(SG) Singapore: Apo terazosin | Hytrin | Terasin;
(SI) Slovenia: Kornam;
(SK) Slovakia: Hytrin | Kornam | Setegis;
(TH) Thailand: Hytrin;
(TN) Tunisia: Hytrine;
(TR) Turkey: Hytrin | Teraumon;
(TW) Taiwan: Conmy | Hytrin | Kinzosin | Telowsin | Teradrin | Terasin | Terazosin | Tezopin | Weson;
(UA) Ukraine: Kornam | Setegis;
(UY) Uruguay: Detrusil | Hytrin | Terina | Zoteran;
(VE) Venezuela, Bolivarian Republic of: Adecur | Hytrin;
(ZA) South Africa: Hytrin

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Terazosin: Drug information