Terazosin
About Terazosin
Terazosin is an oral prescription medication primarily used to treat the symptoms of an enlarged prostate, a condition known as benign prostatic hyperplasia. It is also prescribed to help lower high blood pressure in adults. By targeting specific muscles and blood vessels, it helps improve your daily comfort and cardiovascular health.
To get the best results, you must take Terazosin consistently every day, exactly as prescribed by your doctor. It can be taken with or without food, though taking it at bedtime is often recommended to minimise dizziness. Incorporating heart-healthy habits, such as reducing sodium intake and staying moderately active, can further support your treatment goals.
While taking Terazosin, you may experience mild side effects like dizziness, lightheadedness, or tiredness, especially when you first start. However, if you experience severe dizziness, fainting, or a painful, prolonged erection, you must contact your doctor immediately.
Before starting Terazosin, tell your doctor if you have a history of low blood pressure, liver issues, or if you are planning to have cataract surgery. Do not take this if you have a known allergy to this medication or similar drugs in its class.
Terazosin can interact with other blood pressure drugs, erectile dysfunction medications, and alcohol, which can cause your blood pressure to drop too low. If you are pregnant, breastfeeding, or are an older adult, consult your doctor to ensure this medication is safe for you.
Uses of Terazosin
Medicinal Benefits
Terazosin helps improve urinary symptoms caused by an enlarged prostate and supports healthy blood pressure control. By relaxing certain muscles in the body, it helps improve comfort, daily functioning, and overall quality of life. Benefits may include:
- Helps improve urine flow and reduces difficulty in urination caused by an enlarged prostate.
- Reduces symptoms such as straining, incomplete bladder emptying, and frequent urination.
- Helps decrease nighttime urination, supporting better sleep quality.
- Promotes greater comfort and confidence during daily activities.
- Helps lower and maintain healthy blood pressure levels.
- Supports long-term cardiovascular health by reducing the risks associated with uncontrolled high blood pressure.
Directions for Use
- Terazosin can be taken with or without food.
- Take Terazosin daily at the same time for effective results or as your doctor advises.
- Swallow Terazosin as a whole with a glass of water.
- Do not crush, chew, or break it.
Storage
Side Effects of Terazosin
Common Side Effects (Usually mild)
- Dizziness or lightheadedness, especially when standing up
- Headache
- Feeling unusually tired or weak
- Nasal congestion (stuffy nose)
- Swelling in your hands, ankles, or feet
Serious Side Effects (Call a doctor right away)
- Fainting or severe lightheadedness
- A painful erection that lasts for four hours or longer
- Signs of a severe allergic reaction, such as skin rash, itching, hives, or swelling of the face, lips, and throat
- Difficulty breathing or chest pain
Medicines Containing this Salt
View AllDrug Warnings
- Take the first dose at bedtime: Take your first dose of Terazosin, and any increased doses, right before going to bed, as the risk of dizziness, lightheadedness, and fainting is highest during these times.
- Avoid activities requiring alertness: Do not drive, operate heavy machinery, or perform potentially dangerous tasks for at least 12 hours after your first dose or after any dose increase.
- Inform your eye surgeon: If you are planning cataract or glaucoma surgery, tell your eye doctor that you are taking Terazosin, as it may affect the pupils during the procedure.
- Monitor your blood pressure: Check your blood pressure regularly as advised by your doctor to ensure the medicine is working effectively and safely.
- Do not stop treatment suddenly: Do not discontinue Terazosin without consulting your doctor, as your symptoms or blood pressure may return or worsen.
Drug Interactions
- Erectile dysfunction medications (e.g., sildenafil or tadalafil): Combining these with Terazosin can cause a sudden and severe drop in blood pressure.
- Other blood pressure medications: Taking these together may increase the risk of excessively low blood pressure and dizziness.
Drug-Drug Interactions Checker List:
Safety Advice
Alcohol
unsafeYou are recommended not to consume alcohol and Terazosin to avoid unpleasant side effects like lowering blood pressure (hypotension).
Pregnancy
cautionTerazosin belongs to the pregnancy category C medicine. There is limited evidence regarding the use of Terazosin and is generally not preferred as the initial treatment of hypertension in pregnancy. It is best to consult your doctor if you have high blood pressure during pregnancy.
Breast Feeding
cautionTerazosin can pass into breast milk, but its effect on the baby is not known. So, it is better to tell your doctor if you are taking Terazosin and breastfeeding.
Driving
cautionDrive with caution, Terazosin usually causes drowsiness and affects driving ability.
Liver
cautionTerazosin to be taken with caution, especially if you have had a history of liver disease. Your doctor will have to change the dosage depending on your medical condition and your reaction to treatment.
Kidney
cautionTerazosin to be taken with caution, especially if you have or have had a kidney disease history. Your doctor will have to change the dosage depending on your medical condition and your reaction to treatment.
Children
cautionTerazosin is not recommended for children. Its safety and efficacy are not studied in children.
Habit Forming
Diet & Lifestyle Advise
- Get up slowly: Rise gradually from a sitting or lying position and pause for a moment before standing fully to help reduce the risk of dizziness or fainting.
- Limit evening fluid intake: Reduce your intake of fluids, especially caffeine and alcohol, in the evening to help decrease nighttime urination.
- Follow a heart-healthy diet: If you are taking Terazosin for high blood pressure, eat a low-sodium diet rich in vegetables, fruits, whole grains, and other heart-healthy foods.
- Avoid alcohol consumption: Do not drink alcohol while taking this medication, as it can worsen dizziness and may cause your blood pressure to drop too low.
Special Advise
Consumption of Terazosin may cause dizziness. Avoid activities like driving while taking Terazosin.
A sudden drop of blood pressure may be seen while on this medication, leading to dizziness. Changing your posture at a slower rate might help counter this.
Blood pressure monitoring should be done regularly while taking Terazosin.
Patients Concern
Disease/Condition Glossary
Hypertension: Blood pressure is the measurement of the force that our heart uses to pump blood to all body parts. Hypertension is a chronic condition when blood pressure is too high. This condition can lead to hardened arteries (blood vessels), decreasing the blood and oxygen flow to the heart. Raised blood pressure can cause chest pain (angina) and heart attack (when blood supply to the heart is blocked). Additionally, high blood pressure also causes brain damage (stroke) and kidney failure. High blood pressure can be diagnosed with the help of a blood pressure monitor. Blood pressure is determined both by the amount of blood your heart pumps and the amount of resistance to blood flow in your arteries. The more blood your heart pumps and the narrower your arteries, the higher your blood pressure. Even without symptoms, damage to blood vessels and your heart continues and can be detected.
Benign prostatic hyperplasia (BPH): It is the enlargement of the prostate gland. It is a non-cancerous growth of the prostate gland caused due to overproduction of dihydrotestosterone hormone in men. After age 50, most men develop an enlarged prostate gland putting pressure on the urinary bladder. It leads to restricted or obstructed urine flow, the urge to urinate frequently (especially at night), and the feeling of not emptying the urinary bladder.
FAQs
Terazosin is used to treat hypertension (high blood pressure) and lower any future risk of heart attack and stroke. It is also used to treat mild prostate gland enlargement in men (known as Benign Prostate Hyperplasia) and heart failure.
Terazosin contains Terazosin, an alpha-blocker that acts by relaxing and widening the constricted blood vessels. This reduces the heart's workload and makes the heart more efficient at pumping blood throughout the body.
No, it would be best if you inform your doctor before undergoing surgery, especially cataract eye surgery. Terazosin will be stopped before the surgery by your doctor.
No, you are advised to inform your doctor and monitor your blood pressure for at least two weeks before stopping the medicine. Depending upon your current blood pressure readings, there is a possibility your doctor may lower your medicine dosage and not recommend discontinuing it.
Terazosin may cause priapism (prolonged erections) sometimes. If you have an erection that lasts more than four hours, inform your doctor and seek emergency medical help as if not treated, it can lead to tissue scarring or erectile dysfunction.
Please follow your doctor's advice before taking tadalafil with Terazosin as combining tadalafil with Terazosin can lower your blood pressure (hypotension) and increase the risk of dizziness, lightheadedness, fainting, flushing, headache, and nasal congestion.
Uncontrolled high blood pressure can lead to lead to serious complications such as kidney damage, heart failure, vision loss, and memory loss. Managing your blood pressure through lifestyle changes and medication can help reduce these risks and it’s important to consult your doctor if your blood pressure is not under control.
The common side effects of Terazosin are drowsiness, headache, weakness, dizziness, priapism (prolonged erections), nausea and feeling exhausted. If any of these side effects persist or worsen, please consult your doctor.
No, Terazosin does not cure or shrink an enlarged prostate. Instead, it manages the symptoms by relaxing the muscles around the bladder and prostate to make urination easier. You must continue taking it to maintain this relief. Talk to your doctor about long-term management.
If you feel dizzy or lightheaded, sit or lie down immediately until the feeling passes. To prevent this, make sure to rise slowly from sitting or lying positions. Talk to your doctor if the dizziness persists or becomes severe.
While Terazosin is sometimes prescribed to women to treat high blood pressure, it is not approved or used for prostate conditions. Women who are pregnant or planning to become pregnant should consult their doctor before taking this medication. Talk to your doctor for appropriate alternatives.
Yes, Terazosin can affect your pupils during cataract or glaucoma surgery, a condition known as floppy iris syndrome. Do not stop taking the medication on your own, but make sure to inform your eye surgeon well in advance of your scheduled procedure. Talk to your doctor for guidance.
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