Product Details

Product Information

What you need to know before you take Doxazosin

Do not take Doxazosin • if you are allergic to doxazosin, other types of quinazolines (such as prazosin and terazosin) or any of the other ingredients of this medicine (listed in section 6). This may have been itching, reddening of the skin or difficulty in breathing. • if you are breast-feeding • if you are under 18 years of age • if you have an enlarged prostate gland (benign prostatic hyperplasia) and have low blood pressure. • If you have a history of a condition known as ‘orthostatic hypotension’ which is a form of low blood pressure that causes you to feel dizzy or lightheaded when you stand up from sitting or lying down. • If you have an enlarged prostate gland with one of the following: any kind of congestion or blockage in your urinary tract, a longstanding infection of the urinary tract or you have bladder stones. • if you have overflow incontinence (you do not feel the urge to urinate), or anuria (your body is not producing any urine) with or without kidney problems. Warnings and precautions Talk to your doctor or pharmacist before taking Doxazosin if: • you are pregnant or trying to become pregnant • you have liver disease • you are also taking other medicines • you have heart disease If you are undergoing eye surgery because of cataract (cloudiness of the lens) please inform your eye specialist before the operation that you are using or have previously used Doxazosin. This is because Doxazosin may cause complications during the surgery which can be managed if your specialist is prepared in advance. Before starting treatment with Doxazosin your doctor may perform tests to rule out other conditions such as prostate cancer that may cause the same symptoms as benign prostatic hyperplasia (enlargement of the prostate gland). Persistent painful erections may occur very rarely. If this happens you should contact a doctor immediately. When you start to take Doxazosin you may experience faintness or dizziness caused by low blood pressure, when getting up from sitting or lying down. If you feel faint or dizzy, you should sit or lie down until you feel better and avoid situations where you might fall or hurt yourself. Your doctor may want to measure your blood pressure regularly at the start of therapy to reduce the possibility of these effects happening. Other medicines and Doxazosin Tell your doctor or pharmacist if you are taking, have recently taken or might take any other medicines. There are some medicines that may interact with Doxazosin. • Some patients who take alphablocker therapy for the treatment of high blood pressure or prostate enlargement may experience dizziness or light-headedness, which may be caused by low blood pressure upon sitting or standing up quickly. Certain patients have experienced these symptoms when taking drugs for erectile dysfunction (impotence) with alpha-blockers. In order to reduce the likelihood that these symptoms occur, you should be on a regular daily dose of your alpha-blocker before you start drugs for erectile dysfunction. • Doxazosin may lower your blood pressure even more if you are already taking other medicines to treat high blood pressure. – Medicines to treat bacterial or fungal infections, e.g. clarithromycin, itraconazole, ketoconazole, telithromycin, voriconazole – Medicines used in the treatment of HIV e.g. indinavir, nelfinavir, ritonavir, saquinavir. – Nefazodone, a medicine used to treat depression. Doxazosin with food and drink Please refer to section 3. Pregnancy, breast-feeding and fertility Ask your doctor or pharmacist for advice before taking any medicine. The safety of using doxazosin during pregnancy has not been established. If you are pregnant or planning to have a baby, ask your doctor or pharmacist for advice before taking this medicine. Do not take Doxazosin if you are breast feeding. Driving and using machines Take care if you drive or operate machinery. Your tablets may affect your ability to drive or operate machinery safely, particularly when you first start to take them. They may make you feel weak or dizzy. If you are affected, do not drive or operate machinery and contact your doctor immediately. Doxazosin contains lactose. If you have been told by your doctor that you have an intolerance to some sugars, contact your doctor before taking this medicinal product. Doxazosin tablet contains Sodium This medicine contains less than 1 mmol sodium (23 mg) per tablet, that is to say essentially ‘sodium-free