PRAZOSIN
Background and Date of Approval
Prazosin is an antihypertensive drug approved by the U.S. Food and Drug Administration for the treatment of hypertension.
Uses
Prazosin is used to treat high blood pressure (hypertension) and benign prostatic hyperplasia (BPH), a condition in which the prostate gland enlarges, causing urinary symptoms. It is sometimes prescribed off-label to manage nightmares associated with post-traumatic stress disorder (PTSD).
How is it administered?
Take the Prazosin as your physician advises. Do not crush, chew, or open the medicine. Your physician will decide the correct dosage and duration based on age, body weight, and disease condition. Only stop taking the tablet if your doctor advises you to stop.
Side Effects
The side effects known to occur commonly during the treatment with Prazosin are swelling of ankles, legs, or feet, feeling faint or dizzy, particularly on standing up, headache, drowsiness, palpitations lack of energy, weakness, nervousness, constipation or diarrhea, dry mouth, blurred vision, nasal stiffness, and an increase in the frequency of urine.
Warnings
Do not take this drug if you are allergic to it, other similar drugs called quinazoline drugs, or any of the ingredients in the medicine. This drug is not recommended in individuals under 12 years of age. Before taking Prazosin, you must notify your medical history with your physician. Inform them if you have conditions such as heart failure due to other heart issues, a history of fainting after urination, liver or kidney disease, or if you're scheduled for cataract eye surgery.
Precautions
If you are pregnant, breastfeeding, suspect that you may be pregnant, or are planning to have a baby, it is important to seek advice from your doctor before taking this medicine.
Word of Advice
Prazosin is often prescribed to be taken at bedtime to reduce the risk of dizziness and low blood pressure during the day. This medication can cause dizziness, particularly when you first begin taking it or when your dosage is adjusted. Exercise caution when rising from a sitting or lying position. Move slowly to prevent falls.
References
Pfizer Limited, Electronic medicines compendium (EMC), [Revised on March 2023] [Accessed on 11th Sept 2023], https://www.medicines.org.uk/emc/files/pil.1068.pdf Pfizer Labs, US Food and Drug Administration, [Revised on March 2009] [Accessed on 11th Sept 2023], https://www.accessdata.fda.gov/drugsatfda_docs/label/2009/017442s033lbl.pdf Goodman & Gilmanâs, The Pharmacological Basis of Therapeutics, Adrenergic agonists and antagonists, 12th edition, 2011, 305. KD Tripathi, Essentials of Medical Pharmacology, Antiadrenergic drugs and drugs for glaucoma, 7th edition, 2013, 143.
Frequently Asked Questions
What is Prazosin used for?
Prazosin is primarily used to treat high blood pressure (hypertension) and benign prostatic hyperplasia (BPH), a condition in which the prostate gland enlarges, causing urinary symptoms. It is sometimes prescribed off-label to manage nightmares associated with post-traumatic stress disorder (PTSD).
Is Prazosin habit-forming?
Prazosin is not habit-forming, but it is essential to take it as prescribed and not misuse it. If you have concerns about dependency on this medication, discuss them with your physician.
Can Prazosin cure high blood pressure or BPH?
Prazosin can effectively manage high blood pressure and BPH by controlling symptoms and reducing blood pressure, but it is not a cure. It is important to continue taking the medication as prescribed by your doctor to maintain its benefits.
Is it safe to consume alcohol while taking Prazosin?
Alcohol consumption should be limited while taking Prazosin, as it can enhance the blood pressure-lowering effects of the medication and increase the risk of dizziness and fainting.
Can Prazosin interact with other medications?
Prazosin can interact with other medications, particularly other drugs that lower blood pressure. Inform your physician of all the medications and supplements you are taking to avoid serious drug interactions.