Doxazosin Mesylate 2mg
Generic For: Cardura
Doxazosin mesylate 2mg (brand name Cardura) is an alpha-1 blocker tablet prescribed to treat high blood pressure and the urinary symptoms of benign prostatic hyperplasia (BPH). After a licensed provider reviews your information and confirms your prescription, your medication ships directly from our licensed U.S. pharmacy.
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Doxazosin Mesylate (Cardura) — an alpha-1 blocker for high blood pressure and enlarged prostate (BPH)
Doxazosin Mesylate 2mg Quick Facts
| Drug class | Alpha-1 adrenergic blocker |
|---|---|
| Treats | High blood pressure, enlarged prostate (BPH) symptoms |
| Form | Tablet |
| Typical dosing | Take 1 tablet by mouth daily. |
| Prescription required | Yes — prescription only |
What Is Doxazosin Mesylate 2mg?
Doxazosin mesylate, sold under the brand name Cardura, is an alpha-1 adrenergic blocker available as an oral tablet. It works by relaxing the muscles in blood vessel walls, which lowers blood pressure, and by relaxing muscles in the prostate and bladder neck, which improves urine flow in men with benign prostatic hyperplasia (BPH). It is taken once daily and requires a prescription from a licensed healthcare provider. Doxazosin manages symptoms but does not shrink the prostate or cure hypertension.
What Does Doxazosin Mesylate 2mg Treat?
Hypertension (high blood pressure)
Benign prostatic hyperplasia (BPH) urinary symptoms
Difficulty starting urination due to BPH
Weak urine stream due to BPH
Frequent or urgent urination associated with BPH
Doxazosin Mesylate 2mg Dosage
BPH: Start 1 mg by mouth once daily; may titrate to 2 mg, 4 mg, or 8 mg once daily (max 8 mg/day).
Hypertension: Start 1 mg by mouth once daily; may titrate to 2 mg, 4 mg, 8 mg, or 16 mg once daily (max 16 mg/day).
Your prescriber will determine the dose and duration that are right for you. Always follow the directions on your prescription label.
Doxazosin Mesylate 2mg Side Effects
Common side effects
- Dizziness
- Fatigue or tiredness
- Headache
- Low blood pressure when standing (orthostatic hypotension)
- Drowsiness
- Swelling in the hands or feet (edema)
- Runny or stuffy nose
Serious side effects
Stop taking this medication and seek medical attention right away if you experience:
- Fainting (syncope), especially after the first dose
- Severe dizziness or lightheadedness on standing
- Fast or irregular heartbeat (palpitations)
- Painful, prolonged erection (priapism)
- Allergic reaction (rash, swelling, difficulty breathing)
Warnings & Interactions
Do not use if allergic to doxazosin, other quinazolines (e.g., prazosin, terazosin), or any ingredient
May cause marked low blood pressure and fainting, especially with the first dose or dose increases
Use caution when driving or operating machinery until you know how it affects you
Combining with PDE5 inhibitors (e.g., sildenafil) or other blood pressure medicines can cause additive hypotension
Tell your eye surgeon before cataract surgery — risk of intraoperative floppy iris syndrome
Rule out prostate cancer before treating BPH symptoms
Strong CYP3A4 inhibitors (e.g., ketoconazole, clarithromycin) may increase doxazosin levels
Tell your prescriber about all medications, supplements, and health conditions before starting doxazosin mesylate 2mg.
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