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Doctor insights on: Cardura Drug Interactions

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What is the rate of dissolution of the drug cardura/doxazosin?

What is the rate of dissolution of the drug cardura/doxazosin?

About 4 days: The half life (the time it takes for half of it to get out of your system) is 22 hours. It usually takes about 4 half lives to consider it out of your system so roughly 4 days. Hope this helps. @thepeedoc www.peedoc.com ...Read more

Dr. David Mobley
63 doctors shared insights

Doxazosin (Definition)

Doxazosin is a medication in the class of non-specific Alpha blockers. It is often used to lower blood pressure, or to improve bladder emptying. Doxazosin has been around for a very long time and is typically well tolerated. The dose needs to be slowly escallated as they can cause lightheaded and dizziness (especially when changing position - lying ...Read more


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Can cardura (doxazosin) cause a false positive on drug screenings for marijuana?

Can cardura (doxazosin) cause a false positive on drug screenings for marijuana?

Not to my knowledge: People have many reasons to claim all kinds of "false positives" with drug tests. Problem with mj is that thc stays in fat of body for quite a long time after last use, especially compared to other recreational drugs. This means some people end up very surprised by positive test when last use was many weeks ago. Not truly a false positive from strictly technical point of view. ...Read more

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Is Cardura (doxazosin) a reasonable second BP drug with Lisinopril when CCBs, diuretics, beta blockers are not well tolerated? Also on B-agonists for asthma.

Is Cardura (doxazosin) a reasonable second BP drug with Lisinopril when CCBs, diuretics, beta blockers are not well tolerated?  Also on B-agonists for asthma.

Yes, it is an option: Cardura (doxazosin) or another alpha blocker type drug is an option when the other classes of drugs mentioned are not well tolerated. Alpha blockers can cause dizziness so they are best taken at night to minimize this effect. The dose needs to be increased slowly. Make sure you are exercising and minimizing salt, alcohol and caffeine as well. ...Read more

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What is cardura (doxazosin) used for and its effect?

What is cardura (doxazosin) used for and its effect?

Blood Pressure: Cardura® doxazosin selective inhibitor of alpha-adrenergic receptors. Tell your doctor if you are allergic to it; or to other Alpha blockers such as prazosin and terazosin or if congestive heart failure, angina, heart attack in last 6 months; minimize dizziness-lightheadedness, get up slowly when rising from a sitting or lying position, especially when you first start taking this drug. ...Read more

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What is cardura (doxazosin) XL used for and its effect?

What is cardura (doxazosin) XL used for and its effect?

Hypertension: Switching from Cardura (doxazosin) immediate-release (ir) to Cardura (doxazosin) xl, therapy initiated with the lowest dose (4 mg once daily). Prior to starting therapy with Cardura (doxazosin) xl, the final evening dose of Cardura (doxazosin) should not be taken. Pde-5 inhibitor therapy should be initiated at lowest dose in patients taking Cardura (doxazosin) xl. ...Read more

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When is cardura (doxazosin) used and what are its effects on the prostate?

When is cardura (doxazosin) used and what are its effects on the prostate?

Enlarged prostate: Cardura (doxazosin) helps people who have difficulty with urinating. Their stream is slow or it dribbles. They may get up frequently at night. Many times, it is due to a large prostate. ...Read more

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Whats cardura (doxazosin) used for?

Whats cardura (doxazosin) used for?

Enlarged prostate: Cardura (doxazosin) helps people who have difficulty with urinating. Their stream is slow or it dribbles. They may get up frequently at night. Many times, it is due to a large prostate. ...Read more

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Is cardura or flomax (tamsulosin) better and why?

Is cardura or flomax (tamsulosin) better and why?

Flomax (tamsulosin): Tamsulosin now generic. More specific and fewer side effects. Allhat study showed ? Cardiovascular probs in certain people with cardura (doxazosin). For more: www.Peedoc.Com @thepeedoc. ...Read more

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Cardura or flomax (tamsulosin) - which one is better?

Alpha-blockers: Both are alpha-blockers used to relax the smooth muscle of the prostate and bladder neck resulting in improved urinary flow (can be used in both men and women). Both are available in generic form. Each can result in a decrease in bp: Flomax (tamsulosin), however, is intended to be more selective for alpha-1a type receptors and is not intended for use as an anti-hypertensive agent. ...Read more

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Can you buy cardura (doxazosin) without a prescription?

None: You cannot get any prescription medicine without a prescription, including online in the U.S. (either buy from U.S. Or live in U.S.). If you do, the vendor can be charged with a felony and you may be arrested by federal and state agents and charged with a felony. It is U.S. Law. Most of these medicines are prescriptions for good reason. ...Read more

Dr. Abraham Jaskiel
1 doctor shared a insight

Drug Interaction (Definition)

When the combination of two agents cause an effect, intended or unintended, that would not have otherwise ...Read more


Dr. Jeffrey Stevens
41 doctors shared insights

Cardura (Definition)

Cardura is an anti-BPH agent which is a ...Read more