prazosin

Skip to main navigation

Skip to footer

For Medicare For Providers For Brokers For Employers

Español

For Individuals & Families:

For Individuals & Families

Shop for Plans

Medical

Dental

Other Supplemental

Explore coverage through work

How to Buy Health Insurance

Types of Dental Insurance

Open Enrollment vs. Special Enrollment

See all topics

Shop for Medicare plans

Member Guide

Find a Doctor

Home

Knowledge Center

Wellness Library

prazosin

Pronunciation: PRA zoe sin

Brand: Minipress

Minipress

slide 1 of 24, Minipress,

1 mg, capsule, white, imprinted with MINIPRESS, PFIZER 431

slide 1 of 24

Minipress

slide 2 of 24, Minipress,

2 mg, capsule, pink/white, imprinted with MINIPRESS, PFIZER 437

slide 2 of 24

Minipress

slide 3 of 24, Minipress,

5 mg, capsule, blue/white, imprinted with MINIPRESS, PFIZER 438

slide 3 of 24

Prazosin Hydrochloride

slide 4 of 24, Prazosin Hydrochloride,

1 mg, capsule, white, imprinted with TEVA, 4067

slide 4 of 24

Prazosin Hydrochloride

slide 5 of 24, Prazosin Hydrochloride,

2 mg, capsule, pink, imprinted with TEVA, 4068

slide 5 of 24

Prazosin Hydrochloride

slide 6 of 24, Prazosin Hydrochloride,

5 mg, capsule, blue, imprinted with TEVA, 4069

slide 6 of 24

Prazosin Hydrochloride

slide 7 of 24, Prazosin Hydrochloride,

1 mg, capsule, brown/green, imprinted with MYLAN 1101

slide 7 of 24

Prazosin Hydrochloride

slide 8 of 24, Prazosin Hydrochloride,

2 mg, capsule, brown, imprinted with MYLAN 2302

slide 8 of 24

Prazosin Hydrochloride

slide 9 of 24, Prazosin Hydrochloride,

5 mg, capsule, blue/brown, imprinted with MYLAN 3205

slide 9 of 24

Prazosin Hydrochloride

slide 10 of 24, Prazosin Hydrochloride,

1 mg, capsule, brown/green, imprinted with MYLAN 1101

slide 10 of 24

Prazosin Hydrochloride

slide 11 of 24, Prazosin Hydrochloride,

2 mg, capsule, dark brown/light brown, imprinted with MYLAN 2302

slide 11 of 24

Prazosin Hydrochloride

slide 12 of 24, Prazosin Hydrochloride,

5 mg, blue/brown, imprinted with MYLAN 3205

slide 12 of 24

Prazosin Hydrochloride

slide 13 of 24, Prazosin Hydrochloride,

1 mg, capsule, white, imprinted with PFIZER 431, MINIPRESS

slide 13 of 24

Prazosin Hydrochloride

slide 14 of 24, Prazosin Hydrochloride,

1 mg, white, imprinted with Z 4067

slide 14 of 24

Prazosin Hydrochloride

slide 15 of 24, Prazosin Hydrochloride,

1 mg, green/orange, imprinted with MYLAN 1101

slide 15 of 24

Prazosin Hydrochloride

slide 16 of 24, Prazosin Hydrochloride,

2 mg, capsule, pink/white, imprinted with PFIZER 437, MINIPRESS

slide 16 of 24

Prazosin Hydrochloride

slide 17 of 24, Prazosin Hydrochloride,

2 mg, pink, imprinted with Z 4068

slide 17 of 24

Prazosin Hydrochloride

slide 18 of 24, Prazosin Hydrochloride,

2 mg, dark brown/light brown, imprinted with MYLAN 2302

slide 18 of 24

Prazosin Hydrochloride

slide 19 of 24, Prazosin Hydrochloride,

5 mg, capsule, blue/white, imprinted with PFIZER 438, MINIPRESS

slide 19 of 24

Prazosin Hydrochloride

slide 20 of 24, Prazosin Hydrochloride,

5 mg, blue, imprinted with Z 4069

slide 20 of 24

Prazosin Hydrochloride

slide 21 of 24, Prazosin Hydrochloride,

5 mg, blue/brown, imprinted with MYLAN 3205

slide 21 of 24

Prazosin Hydrochloride

slide 22 of 24, Prazosin Hydrochloride,

1 mg, capsule, brown/green, imprinted with 019, novitium

slide 22 of 24

Prazosin Hydrochloride

slide 23 of 24, Prazosin Hydrochloride,

2 mg, capsule, brown, imprinted with 020, novitium

slide 23 of 24

Prazosin Hydrochloride

slide 24 of 24, Prazosin Hydrochloride,

5 mg, capsule, blue/brown, imprinted with 021, novitium

slide 24 of 24

What is the most important information I should know about prazosin?

Follow all directions on your medicine label and package. Tell each of your healthcare providers about all your medical conditions, allergies, and all medicines you use.

What is prazosin?

Prazosin is used to treat hypertension (high blood pressure). Lowering blood pressure may lower your risk of a stroke or heart attack.

Prazosin may also be used for other purposes not listed in this medication guide.

What should I discuss with my healthcare provider before taking prazosin?

You should not use prazosin if you are allergic to it.

Tell your doctor if you have ever had:

low blood pressure, especially if caused by taking medications.

Prazosin can affect your pupils. If you have cataract surgery, tell your surgeon ahead of time that you use this medicine.

Tell your doctor if you are pregnant or plan to become pregnant. It is not known whether prazosin will harm an unborn baby. However, having high blood pressure during pregnancy may cause complications such as diabetes or eclampsia (dangerously high blood pressure that can lead to medical problems in both mother and baby). The benefit of treating hypertension may outweigh any risks to the baby.

It may not be safe to breastfeed while using this medicine. Ask your doctor about any risk.

Prazosin is not approved for use by anyone younger than 18 years old.

How should I take prazosin?

Follow all directions on your prescription label and read all medication guides or instruction sheets. Your doctor may occasionally change your dose. Use the medicine exactly as directed.

Prazosin lowers blood pressure and may cause dizziness or fainting, especially when you first start taking it, or whenever your dose is changed. You may feel very dizzy when you first wake up.

Your blood pressure will need to be checked often.

Swallow the capsule whole and do not crush, chew, break, or open it.

Keep using this medicine as directed, even if you feel well. High blood pressure often has no symptoms. You may need to use blood pressure medication for the rest of your life.

Prazosin is only part of a complete treatment program that may also include diet, exercise, weight control, and special medical care. Follow your doctor's instructions very closely.

Some things can cause your blood pressure to get too low. This includes vomiting, diarrhea, or heavy sweating. Call your doctor if you are sick with vomiting or diarrhea.

Store at room temperature away from moisture and heat.

What happens if I miss a dose?

Take the medicine as soon as you can, but skip the missed dose if it is almost time for your next dose. Do not take two doses at one time.

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

Overdose symptoms may include extreme drowsiness or underactive reflexes.

What should I avoid while taking prazosin?

Avoid driving or hazardous activity until you know how this medicine will affect you. Your reactions could be impaired.

Avoid getting up too fast from a sitting or lying position, or you may feel dizzy.

Drinking alcohol with this medicine can cause side effects.

What are the possible side effects of prazosin?

Get emergency medical help if you have signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have:

a light-headed feeling, like you might pass out;
pounding heartbeats or fluttering in your chest;
new or worsening chest pain; or
upper stomach pain, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes).

Call your doctor or seek emergency medical attention if your erection is painful or lasts longer than 4 hours. A prolonged erection (priapism) can damage the penis.

Common side effects may include:

dizziness, drowsiness;
headache;
feeling weak or tired; or
nausea.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What other drugs will affect prazosin?

Tell your doctor about all your other medicines, especially:

propranolol;
any other blood pressure medication;
a diuretic or "water pill"; or
sildenafil (Viagra) and other erectile dysfunction medicines.

This list is not complete. Other drugs may affect prazosin, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible drug interactions are listed here.

Where can I get more information?

Your pharmacist can provide more information about prazosin.

Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.

Every effort has been made to ensure that the information provided by Cerner Multum, Inc. ('Multum') is accurate, up-to-date, and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. Multum information has been compiled for use by healthcare practitioners and consumers in the United States and therefore Multum does not warrant that uses outside of the United States are appropriate, unless specifically indicated otherwise. Multum's drug information does not endorse drugs, diagnose patients or recommend therapy. Multum's drug information is an informational resource designed to assist licensed healthcare practitioners in caring for their patients and/or to serve consumers viewing this service as a supplement to, and not a substitute for, the expertise, skill, knowledge and judgment of healthcare practitioners. The absence of a warning for a given drug or drug combination in no way should be construed to indicate that the drug or drug combination is safe, effective or appropriate for any given patient. Multum does not assume any responsibility for any aspect of healthcare administered with the aid of information Multum provides. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the drugs you are taking, check with your doctor, nurse or pharmacist.

Copyright 1996-2023 Cerner Multum, Inc. Version: 7.01. Revision date: 11/26/2019.

Your use of the content provided in this service indicates that you have read, understood and agree to the End-User License Agreement, which can be accessed by End-User License Agreement, which can be accessed by clicking on this link.

This information does not replace the advice of a doctor. Healthwise, Incorporated, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.

Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.

<cipublic-spinner variant="large"><span>Loading…</span></cipublic-spinner>

Page Footer

I want to...

Get an ID card

File a claim

View my claims and EOBs

Check coverage under my plan

See prescription drug list

Find an in-network doctor, dentist, or facility

Find a form

Find 1095-B tax form information

View the Cigna Glossary

Contact Cigna

Audiences

Individuals and Families

Medicare

Employers

Brokers

Providers

Secure Member Sites

myCigna member portal

Health Care Provider portal

Cigna for Employers

Client Resource Portal

Cigna for Brokers

The Cigna Group Information

About The Cigna Group

Company Profile

Careers

Newsroom

Investors

Suppliers

The Cigna Group

Third Party Administrators

International

Evernorth

Privacy

Legal

Product Disclosures

Cigna Company Names

Customer Rights

Accessibility

Non-Discrimination Notice

Language Assistance [PDF]

Report Fraud

Sitemap

Cookie Settings

Disclaimer

Individual and family medical and dental insurance plans are insured by Cigna Health and Life Insurance Company (CHLIC), Cigna HealthCare of Arizona, Inc., Cigna HealthCare of Illinois, Inc., Cigna HealthCare of Georgia, Inc., Cigna HealthCare of North Carolina, Inc., Cigna HealthCare of South Carolina, Inc., and Cigna HealthCare of Texas, Inc. Group health insurance and health benefit plans are insured or administered by CHLIC, Connecticut General Life Insurance Company (CGLIC), or their affiliates (see a listing of the legal entities that insure or administer group HMO, dental HMO, and other products or services in your state). Accidental Injury, Critical Illness, and Hospital Care plans or insurance policies are distributed exclusively by or through operating subsidiaries of Cigna Corporation, are administered by Cigna Health and Life Insurance Company, and are insured by either (i) Cigna Health and Life Insurance Company (Bloomfield, CT); (ii) Life Insurance Company of North America (“LINA”) (Philadelphia, PA); or (iii) New York Life Group Insurance Company of NY (“NYLGICNY”) (New York, NY), formerly known as Cigna Life Insurance Company of New York. The Cigna name, logo, and other Cigna marks are owned by Cigna Intellectual Property, Inc. LINA and NYLGICNY are not affiliates of Cigna.

All insurance policies and group benefit plans contain exclusions and limitations. For availability, costs and complete details of coverage, contact a licensed agent or Cigna sales representative. This website is not intended for residents of New Mexico.

Selecting these links will take you away from Cigna.com to another website, which may be a non-Cigna website. Cigna may not control the content or links of non-Cigna websites. Details

Shop for Plans

Shop for your own coverage

Plans through your employer

Learn

Looking for Medicare coverage?

Minipress

Minipress

Minipress

Prazosin Hydrochloride

Prazosin Hydrochloride

Prazosin Hydrochloride

Prazosin Hydrochloride

Prazosin Hydrochloride

Prazosin Hydrochloride

Prazosin Hydrochloride

Prazosin Hydrochloride

Prazosin Hydrochloride

Prazosin Hydrochloride

Prazosin Hydrochloride

Prazosin Hydrochloride

Prazosin Hydrochloride

Prazosin Hydrochloride

Prazosin Hydrochloride

Prazosin Hydrochloride

Prazosin Hydrochloride

Prazosin Hydrochloride

Prazosin Hydrochloride

Prazosin Hydrochloride

Prazosin Hydrochloride

What is the most important information I should know about prazosin?

What is prazosin?

What should I discuss with my healthcare provider before taking prazosin?

How should I take prazosin?

What happens if I miss a dose?

What happens if I overdose?

What should I avoid while taking prazosin?

What are the possible side effects of prazosin?

What other drugs will affect prazosin?

Where can I get more information?

Page Footer

I want to...

Audiences

Secure Member Sites

The Cigna Group Information

Disclaimer