DOXAZOSIN is an antihypertensive. It works by relaxing the blood vessels. It is used to treat benign prostatic hyperplasia (BPH) in men and to treat high blood pressure in both men and women.
What should my health care professional know before I take this medicine?
They need to know if you have any of the following conditions:
kidney or liver disease
low blood pressure
an unusual or allergic reaction to doxazosin, other medicines, foods, dyes, or preservatives
pregnant or trying to get pregnant
breast-feeding
How should I take this medicine?
Take this medicine by mouth with a glass of water. Take your doses at regular intervals. Do not take your medicine more often than directed. Do not stop taking except on the advice of your doctor or health care professional.
Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed.
Overdosage: If you think you have taken too much of this medicine contact a poison control center or emergency room at once.
NOTE: This medicine is only for you. Do not share this medicine with others.
What if I miss a dose?
If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.
What may interact with this medicine?
cimetidine
medicines for colds or hay fever
medicines for overactive bladder
sildenafil
tadalafil
vardenafil
This list may not describe all possible interactions. Give your health care providers a list of all the medicines, herbs, non-prescription drugs, or dietary supplements you use. Also tell them if you smoke, drink alcohol, or use illegal drugs. Some items may interact with your medicine.
What should I watch for while taking this medicine?
Visit your doctor or health care professional for regular checks on your progress. Check your blood pressure regularly. Ask your doctor or health care professional what your blood pressure should be and when you should contact him or her.
Drowsiness and dizziness are more likely to occur after the first dose, after an increase in dose, or during hot weather or exercise. These effects can decrease once your body adjusts to this medicine. Do not drive, use machinery, or do anything that needs mental alertness until you know how this drug affects you. Do not stand or sit up quickly, especially if you are an older patient. This reduces the risk of dizzy or fainting spells. Alcohol can make you more drowsy and dizzy. Avoid alcoholic drinks.
Do not treat yourself for coughs, colds, or pain while you are taking this medicine without asking your doctor or health care professional for advice. Some ingredients may increase your blood pressure.
Your mouth may get dry. Chewing sugarless gum or sucking hard candy, and drinking plenty of water may help. Contact your doctor if the problem does not go away or is severe. What side effects may I notice from taking this medicine?
Side effects that you should report to your doctor or health care professional as soon as possible:
allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
breathing problems
changes in vision
chest pain
fast or irregular heartbeat
feeling faint or lightheaded, falls
numbness in hands or feet
prolonged painful erection of the penis
swelling of the legs or ankles
unusually weak or tired
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
headache
nausea
This list may not describe all possible side effects.
Where can I keep my medicine?
Keep out of the reach of children.
Store at room temperature below 30 degrees C (86 degrees F). Throw away any unused medicine after the expiration date.
