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Common uses
Cardura (Doxazosin) is in a group of drugs called alpha-adrenergic blockers. Cardura (Doxazosin) causes the blood vessels (veins and arteries) to relax and expand, improving blood flow. Cardura (Doxazosin) also relaxes muscles in the prostate and bladder neck, making it easier to urinate.
Cardura (Doxazosin) is used to treat hypertension (high blood pressure) and benign prostatic hyperplasia (enlarged prostate).
Before using
Do not take Cardura (Doxazosin) if you are also taking certain medicines for erectile dysfunction such as sildenafil, tadalafil, or vardenafil. Additional monitoring of your dose or condition may be needed if you are also taking verapamil. Do not start or stop any medicine without doctor or pharmacist approval. Inform your doctor of any other medical conditions, allergies, pregnancy, or breast-feeding.
Directions
Follow the directions for using this medicine provided by your doctor. Store Cardura (Doxazosin) at room temperature, away from heat and light. If you miss a dose of this medicine, take it as soon as possible. If you are taking 1 dose daily and do not remember until the next day, skip the missed dose and go back to your regular dosing schedule. Do not take 2 doses at once.
Cautions
Cardura (Doxazosin) may cause drowsiness. Do not drive, operate machinery, or do anything else that could be dangerous until you know how you react to this medicine. This medicine may cause dizziness, lightheadedness, or fainting after the first dose. Take the first dose at bedtime. If you get up during the night, sit up and stand up slowly. Continue to sit up and stand slowly while you are taking Cardura (Doxazosin). Be careful during exercise, hot weather, and if you must stand for long periods of time. Before drinking alcohol, discuss it with your doctor. Alcohol may worsen dizziness or lightheadedness.
For women: if you plan on becoming pregnant, discuss with your doctor the benefits and risks of using this medicine during pregnancy. It is unknown if this medicine is excreted in breast milk. If you are or will be breast-feeding while you are using this medicine, check with your doctor or pharmacist to discuss the risks to your baby.
Possible side effects
Side effects, that may go away during treatment, include dizziness, headache, nausea, drowsiness, lack of energy, dry mouth, or nasal congestion. If they continue or are bothersome, check with your doctor. Check with your doctor as soon as possible if you experience pounding heartbeat, puffiness in hands or feet, or blurred vision. Contact your doctor immediately if you experience difficulty breathing; tightness of chest; swelling of eyelids, face or lips; or if you develop a rash or hives, tell your doctor immediately. If you notice other effects not listed above, contact your doctor, nurse, or pharmacist.
If you take too much
If overdose is suspected, contact your local poison control center or emergency room immediately. Symptoms of overdose may include dizziness and weakness.
Additional information
Do not share Cardura (Doxazosin) with others for whom it was not prescribed. Do not use this medicine for other health conditions. Keep this medicine out of the reach of children. If using Cardura (Doxazosin) for an extended period of time, obtain refills before your supply runs out.
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