Doxadura XL (doxazosin)

Side effects

Medicines and their possible side effects can affect individual people in different ways. The following are some of the side effects that are known to be associated with this medicine. Just because a side effect is stated here does not mean that all people using this medicine will experience that or any side effect.

- Dizziness.
- A drop in blood pressure that occurs when going from lying down to sitting or standing, which results in dizziness and lightheadedness (postural hypotension).
- Fainting.
- Feeling weak or fatigued.
- Excessive fluid retention in the body tissues, resulting in swelling (oedema).
- Headache.
- Inflammation of the lining of the nose (rhinitis) causing a blocked or runny nose.
- Disturbances of the gut such as diarrhoea, constipation, nausea, vomiting or abdominal pain.
- Awareness of your heart beat (palpitations).
- Increased heart rate.
- Dry mouth.
- Blurred vision.
- Difficulty sleeping (insomnia).
- Agitation or tremor.
- Increased need to pass urine.
- Impotence.
- Persistent painful erection of the penis (priapism).
- Skin reactions such as rash and itch.
- Disturbance in the levels of blood cells in the blood.
- Liver disorders.

The side effects listed above may not include all of the side effects reported by the drug's manufacturer. For more information about any other possible risks associated with this medicine, please read the information provided with the medicine or consult your doctor or pharmacist.

How can this medicine affect other medicines?

It is important to tell your doctor or pharmacist what medicines you are already taking, including those bought without a prescription and herbal medicines, before you start treatment with this medicine. Similarly, check with your doctor or pharmacist before taking any new medicines while taking this one, to ensure that the combination is safe.

If doxazosin is taken with other medicines that reduce blood pressure, either as a treatment for high blood pressure (antihypertensives), or as a side effect, there may be an enhanced blood pressure lowering effect. This might make some people feel dizzy, particularly when you first start taking the doxazosin. If you do feel dizzy, you should lie down until the symptoms pass. If any dizziness persists you should let your doctor know, as your medicine doses may need adjusting. Other medicines that can reduce blood pressure include the following:

- ACE inhibitors, eg enalapril, captopril
- other alpha blockers, eg tamsulosin, terazosin
- angiotensin II receptor antagonists, eg losartan
- antipsychotic medicines
- baclofen
- benzodiazepines, eg temazepam
- beta-blockers, eg propranolol
- calcium channel blockers, eg diltiazem, verapamil, nifedipine
- diuretics, eg furosemide, bendroflumethiazide
- levodopa
- MAOI antidepressants, eg phenelzine
- nitrates, eg glyceryl trinitrate, isosorbide mononitrate
- phosphodiesterase type 5 inhibitors for impotence, eg sildenafil, vardenafil, tadalafil.

Other medicines containing the same active ingredient

Cardura

Cardura XL

Doxadura

Doxazosin tablets are also available without a brand name, ie as the generic medicine.

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