How It Works:
Terazosin belongs to class of medications called alpha-receptor blockers or alpha-blockers. Terazosin antagonizes the alpha receptors causing relaxation of the smooth muscle tone in the prostate and bladder neck, hence the urine is passed easily in patients with enlarged prostrate. Further, terazosin by binding to alpha-1 receptors relaxes the blood vessels thereby lowering the high blood pressure.
tachycardia, Weakness, syncope, vertigo, blurred vision, nausea, decreased libido, edema, paresthesia of skin), depression, swelling of the hands and feet, sinusitis and impotence. Priapism is an extremely rare but serious side effect., postural hypotension, back pain, dizziness, sleepiness, pain in extremities, dyspnea, a fast or uneven heartbeat, headache, weight gain, nervousness, blocked nose
Terazosin is used to treat signs and symptoms of benign prostatic hyperplasia (BPH, also known as enlarged prostate) such as urinary outflow obstruction (characterized by hesitation, intermittency, dribbling, weak urinary stream, and incomplete emptying of the bladder) and obstructive and irritative symptoms (nocturia, daytime frequency, urgency, burning). It is also used either alone or in combination in the treatment of hypertension (high blood pressure).
- Seek immediate medical attention if you experience syncope (temporary loss of consciousness caused by a fall in blood pressure) especially in the upright position, along with other postural symptoms such as dizziness after the first dose, first few days of therapy, or restarting the therapy after a brief interruption. Do not panic, you should sit or lie down until you feel better.
- Consult your doctor immediately if you experience priapism (painful erection of the penis, sustained for hours and unrelieved by sexual intercourse or masturbation), which is an extremely rare but serious side effect, if untreated can lead to permanent inability to have an erection.
- Inform your doctor that you are on terazosin therapy, if you are to undergo an eye surgery for cataract so as to avoid the complications during cataract surgery.
- Do not drive or operate machinery as terazosin may make you drowsy or dizzy.
- Take screening test for the presence of prostate cancer prior to treatment and at regular intervals afterwards, as terazosin is not indicated for symptoms (though similar to BPH) due to prostate cancer.
- Tell your doctor if you are or planning to become pregnant or are breastfeeding.
Frequently Ask Questions:
Q. Is terazosin safe during pregnancy?Terazosin should only be used if the potential benefits justify the potential risk to the baby. Please follow your doctor's advice regarding its use.
Q. Is it safe to use terazosin during breastfeeding?It is not known whether terazosin is excreted in breast milk. Terazosin should only be used if the potential benefits justify the potential risk to the baby. Please follow your doctor's advice regarding its use.
Q. Is terazosin a beta blocker or an alpha blocker?Terazosin belongs to class of medications called alpha-receptor blockers or alpha-blockers.
Q. Is terazosin safe?Terazosin is safe if used at prescribed doses for the prescribed duration as advised by your doctor.
Q. Is terazosin a statin or a blood thinner (thin the blood)?Terazosin is neither a statin nor a blood thinner.
Q. Is terazosin a diuretic?No, terazosin is not a diuretic, it antagonizes the alpha receptors causing relaxation of the smooth muscle tone in the prostate and bladder neck, hence the urine is passed easily in patients with enlarged prostrate.
Q. Is terazosin a narcotic?No, terazosin is not a narcotic.
Q. Does terazosin lower heart rate?No, terazosin is not known to reduce heart rate. Increase in heart rate or irregular heart rate is a common adverse event reported for terazosin.
Q. Does Terazosin cause weight gain/ impotence/ tiredness/ constipation and dry mouth?Weight gain/ tiredness/ constipation and dry mouth are common side effects of terazosin therapy. However is not known to cause impotence. It may rarely cause painful prolonged erections (Priapism), which if untreated may cause impotence.
Q. Can I take terazosin with Cialis (tadalafil)?Please follow your doctor’s advice before taking these medications with terazosin. As combining Cialis (tadalafil) with terazosin can lower your blood pressure and increase the risk of dizziness, lightheadedness, fainting, flushing, headache, and nasal congestion.
Q. Can I take terazosin with Flomax (tamsulosin)?Terazosin and Flomax (tamulosin) are both used for the symptomatic treatment of benign prostatic hyperplasia. Please follow your doctor’s advice before taking any medications when on treatment with terazosin.
Q. Does terazosin lower Prostate specific antigen (PSA)?No, terazosin does not lower PSA.