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Prazosin

Prescription vs.OTC: Prescription by Doctor required
Last Updated: December 14, 2018

Prazosin is a drug that is used with a combination of other medicines, that helps to prevent the risk of heart failures, high blood pressure that causes tightness of chest and breathing difficulties, chest pain. It belongs to the alpha blocker class of medicines and is as an alpha andregenic receptor antagonist that decreases the secretion of epinephrine and norepinephrine. This helps facilitating in vasodilation of blood vessels to relieve pain and stimulate proper blood circulation in the body. The drug usually stays in the patient’s body for a day at most and is gradually leaves the system through bile and feces.

The drug is contraindicated in patients who have suffered or are suffering from orthostatic hypotension (blood pressure drop upon standing), cataract surgery, intraoperative floppy iris syndrome and allergy to quinazoline analogues. The drug has been known to cause complications on interacting with certain drugs like aldesleukin, amiloride, amiodarone, aspirin, etc. it has been found to cause side effects like dizziness, fainting, nausea, headache, edema, blurred vision, nasal congestion, constipation, etc. These side effects gradually improve over time and though common they do not occur in each and every case. Overdose of Prazosin can cause problems hence it is suggested to seek out the advise of a doctor prior to the usage of the drug.

Information given here is based on the salt and content of the medicine. Effect and uses of medicine may vary from person to person. It is advicable to consult a Cardiologist before using this medicine.

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In addition to its intended effect, Prazosin may cause some unwanted effects too. In such cases, you must seek medical attention immediately. This is not an exhaustive list of side effects. Please inform your doctor if you experience any adverse reaction to the medication.

Fainting

Weakness

Headache

Edema

Blurred vision

Breathlessness

Is It safe with alcohol?

Are there any pregnancy warnings?

Renopress 5mg tablet xl may be unsafe to use during pregnancy.
Animal studies have shown adverse effects on the foetus, however, there are limited human studies. The benefits from use in pregnant women may be acceptable despite the risk. Please consult your doctor.

Are there any breast-feeding warnings?

Unknown. Human and animal studies are not available. Please consult your doctor.

Is it safe to drive while on this medicine?

It may cause dizziness, drowsiness . Exercise caution if you have to drive or operate a machinery.

Does this affect kidney function?

Should be used cautiously in patients with an underlying kidney disease. Please consult your doctor.

Does this affect liver function?

Should be used cautiously in patients with an underlying liver disease. Please consult your doctor.

Are there any missed dose instructions?

If you miss a dose of Prazosin, skip it and continue with your normal schedule. Do not double the dose.
Below is the list of medicines, which contains Prazosin as ingredient
La Renon Healthcare Pvt Ltd
Sun Pharmaceutical Industries Ltd
Biochem Pharmaceutical Industries
Sun Pharmaceutical Industries Ltd
C M R Life Sciences
Intas Pharmaceuticals Ltd
C M R Life Sciences
Intas Pharmaceuticals Ltd
C M R Life Sciences
Sun Pharmaceutical Industries Ltd
Prazosin works by blocking the postsynaptic alpha(1)-adrenoceptors present on vascular smooth muscle. Therefore, the vasoconstriction of circulating and locally generated catecholamines is stopped. As a result, peripheral vasodilation takes place.
Whenever you take more than one medicine, or mix it with certain foods or beverages, you"re at risk of a drug interaction.

Interaction with Medicine

Disclaimer: The information produced here is best of our knowledge and experience and we have tried our best to make it as accurate and up-to-date as possible, but we would like to request that it should not be treated as a substitute for professional advice, diagnosis or treatment.

Lybrate is a medium to provide our audience with the common information on medicines and does not guarantee its accuracy or exhaustiveness. Even if there is no mention of a warning for any drug or combination, it never means that we are claiming that the drug or combination is safe for consumption without any proper consultation with an expert.

Lybrate does not take responsibility for any aspect of medicines or treatments. If you have any doubts about your medication, we strongly recommend you to see a doctor immediately.

Popular Questions & Answers

I am having nightmares clubbed with anxiety during sleep, mostly everyday, Doctor my age is 20, I am planning to use prazosin 1 mg for nightmares under doctor's supervision, I am a non BP person, can prazosin be used by non BP person's.Is this drug safe to use for nightmares? Please reply.

MBBS, MD Psychiatry, DPM Psychological Medicine
Psychiatrist, Kolkata
I am having nightmares clubbed with anxiety during sleep, mostly everyday, Doctor my age is 20, I am planning to use ...
Hi lybrate-user you have raised a very interesting question. Yes Prazosin is being used as an agent to treat trauma/PTSD related night mare but not in simple nightmares. There are several randomised controlled study where Prazosin were used succes...

Sir I am 69 years old man and having prostate problem. I have been advised Alfuzosin 10 mg at night 3 years ago. I have been prescribed prazosin 5 mg in night in addition to alfuzosin 10 mg day before yesterday. Please clarify whether alfuzosin 10 mg and prazosin 5 mg can be given simultaneously to a patient.

BASM, MD, MS (Counseling & Psychotherapy), MSc - Psychology, Certificate in Clinical psychology of children and Young People, Certificate in Psychological First Aid, Certificate in Positive Psychology, Positive Psychiatry and Mental Health
Psychologist, Palakkad
Sir
I am 69 years old man and having prostate problem. I have been advised Alfuzosin 10 mg at night 3 years ago. I ha...
Dear Om Prakash. Causes of prostatitis may include infection, injury or an immune system disorder. Symptoms include difficulty urinating, pain in the groin, pelvic area or genitals and, sometimes, flu-like symptoms. Prostatitis may get better on i...

I TAKE cilacar bds, PRAZOSIN 5 bds, valium 5,deplatt 75, rosuvas DGLY COME T5 BDS BUT I CAN NOT SLEEP well and bp fluctuates. CAN I TAKE MELATONIN5?

MD - Alternate Medicine, Bachelor of Ayurveda, Medicine and Surgery (BAMS)
Ayurveda, Mohali
I TAKE cilacar bds, PRAZOSIN 5 bds, valium 5,deplatt 75, rosuvas DGLY COME T5 BDS BUT I CAN NOT SLEEP well and bp flu...
Try ashwagandha or tagar natural herbs for sleep correction. Try ayurveda nasya karma and shirodhara which can help you to sleep rather then allopathic medication, as they carry a lot of side effects and are habbit forming. Also, you can try with ...
1 person found this helpful

I am 57 having since last 20 years, using telmisartan 40 mg with amlodipine 50 mg now added with minipress 2.5 mg (prazosin with hcl)-what's purpose, how much safer, getting heart sinking feeling but now bp is 135-85 previously 160-105, any reason of such feeling?

Fellowship in Paediatric Cardiac Surgery, M. Ch. (CVTS), MS, MBBS
Cardiologist, Bangalore
I am 57 having since last 20 years, using telmisartan 40 mg with amlodipine 50 mg now added with minipress 2.5 mg (pr...
Dear sir, I can see you are under the care of a good doctor. Please continue his treatment. But for the sinking feeling in your heart, I suggest you ask him to try changing some medication. Exercise and yoga also help in reducing bp and giving a s...
2 people found this helpful

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Table of Content
About Prazosin
When is Prazosin prescribed?
What are the side effects of Prazosin ?
Key highlights of Prazosin
What are the dosage instructions?
Medicines containing Prazosin
How does medicine works?
What are the interactions for Prazosin ?