Hydralazine Hydrochloride

Hypertension, Congestive Heart Failure, Hypertension + 1 more

Treatment

2 FDA approvals

20 Active Studies for Hydralazine Hydrochloride

What is Hydralazine Hydrochloride

Hydralazine

The Generic name of this drug

Treatment Summary

Hydralazine is a medication used to treat high blood pressure and heart failure. It was originally developed in the 1950s to treat malaria and was later discovered to also reduce blood pressure. Hydralazine is not the first line of treatment for these conditions anymore, as newer medications have been developed, but it is still used as an adjunct therapy. Hydralazine hydrochloride was approved by the FDA in 1953.

Apresoline hydrochloride

is the brand name

image of different drug pills on a surface

Hydralazine Hydrochloride Overview & Background

Brand Name

Generic Name

First FDA Approval

How many FDA approvals?

Apresoline hydrochloride

Hydralazine

1953

300

Approved as Treatment by the FDA

Hydralazine, also called Apresoline hydrochloride, is approved by the FDA for 2 uses which include Hypertensive disease and Hypertension, Essential Hypertension .

Hypertensive disease

Helps manage Hypertension, Essential Hypertension

Hypertension, Essential Hypertension

Helps manage Hypertension, Essential Hypertension

Effectiveness

How Hydralazine Hydrochloride Affects Patients

Hydralazine helps to lower blood pressure by relaxing the small muscles in the arteries. It's effects start two to six hours after taking it and can last up to 300mg. People taking this drug should be aware of the possibility of developing a condition called systemic lupus erythematosus.

How Hydralazine Hydrochloride works in the body

Hydralazine relaxes the muscles of the blood vessels, reducing their resistance and allowing more blood to flow. This in turn increases the heart rate and stroke volume, leading to a decrease in blood pressure. Hydralazine also blocks an enzyme that helps break down a protein called HIF-1α, which helps stimulate the growth of new blood vessels. By blocking this enzyme, Hydralazine helps promote the growth of new blood vessels.

When to interrupt dosage

The proposed dosage of Hydralazine Hydrochloride is contingent upon the established illness, including Hypertensive emergency, Hypertensive sickness and Pregnancy. The measure shifts, as per the technique of delivery (e.g. Tablet, coated - Oral or Tablet) featured in the table below.

Condition

Dosage

Administration

Hypertensive disease

, 20.0 mg/mL, 10.0 mg, 25.0 mg, 50.0 mg, 100.0 mg, 37.5 mg

, Injection, solution, Injection, solution - Intramuscular; Intravenous, Intramuscular; Intravenous, Oral, Tablet, Tablet - Oral, Tablet, film coated - Oral, Tablet, film coated, Injection, Injection - Intramuscular; Intravenous, Injection, solution - Intramuscular; Intravascular, Intramuscular; Intravascular, Solution, Intravenous, Solution - Intravenous, Tablet, coated - Oral, Tablet, coated, Capsule, Capsule - Oral, Injection - Intramuscular; Intravascular

Hypertension

, 20.0 mg/mL, 10.0 mg, 25.0 mg, 50.0 mg, 100.0 mg, 37.5 mg

, Injection, solution, Injection, solution - Intramuscular; Intravenous, Intramuscular; Intravenous, Oral, Tablet, Tablet - Oral, Tablet, film coated - Oral, Tablet, film coated, Injection, Injection - Intramuscular; Intravenous, Injection, solution - Intramuscular; Intravascular, Intramuscular; Intravascular, Solution, Intravenous, Solution - Intravenous, Tablet, coated - Oral, Tablet, coated, Capsule, Capsule - Oral, Injection - Intramuscular; Intravascular

Congestive Heart Failure

, 20.0 mg/mL, 10.0 mg, 25.0 mg, 50.0 mg, 100.0 mg, 37.5 mg

, Injection, solution, Injection, solution - Intramuscular; Intravenous, Intramuscular; Intravenous, Oral, Tablet, Tablet - Oral, Tablet, film coated - Oral, Tablet, film coated, Injection, Injection - Intramuscular; Intravenous, Injection, solution - Intramuscular; Intravascular, Intramuscular; Intravascular, Solution, Intravenous, Solution - Intravenous, Tablet, coated - Oral, Tablet, coated, Capsule, Capsule - Oral, Injection - Intramuscular; Intravascular

Hypertension

, 20.0 mg/mL, 10.0 mg, 25.0 mg, 50.0 mg, 100.0 mg, 37.5 mg

, Injection, solution, Injection, solution - Intramuscular; Intravenous, Intramuscular; Intravenous, Oral, Tablet, Tablet - Oral, Tablet, film coated - Oral, Tablet, film coated, Injection, Injection - Intramuscular; Intravenous, Injection, solution - Intramuscular; Intravascular, Intramuscular; Intravascular, Solution, Intravenous, Solution - Intravenous, Tablet, coated - Oral, Tablet, coated, Capsule, Capsule - Oral, Injection - Intramuscular; Intravascular

Warnings

Hydralazine Hydrochloride has three contraindications and should not be combined with the states presented in the following table.

Hydralazine Hydrochloride Contraindications

Condition

Risk Level

Notes

Coronary Disease

Do Not Combine

Rheumatic Heart Disease

Do Not Combine

Severe Hypersensitivity Reactions

Do Not Combine

Hydralazine may interact with Pulse Frequency

There are 20 known major drug interactions with Hydralazine Hydrochloride.

Common Hydralazine Hydrochloride Drug Interactions

Drug Name

Risk Level

Description

Abemaciclib

Major

The metabolism of Abemaciclib can be decreased when combined with Hydralazine.

Acalabrutinib

Major

The metabolism of Acalabrutinib can be decreased when combined with Hydralazine.

Alectinib

Major

The metabolism of Alectinib can be decreased when combined with Hydralazine.

Alpelisib

Major

The metabolism of Alpelisib can be decreased when combined with Hydralazine.

Amifostine

Major

Hydralazine may increase the hypotensive activities of Amifostine.

Hydralazine Hydrochloride Toxicity & Overdose Risk

The lowest toxic dose of a drug in rats is 173-187mg/kg and the highest known dose a human has survived is 10g. Those who overdose on this drug may experience low blood pressure, rapid heart rate, headache, flushing, heart pain, heart attack, abnormal heart rhythms, and shock. Treatments for an overdose include emptying the stomach and activated charcoal, which may cause additional heart rhythm problems and shock. It is important to provide supportive and symptomatic care.

image of a doctor in a lab doing drug, clinical research

Hydralazine Hydrochloride Novel Uses: Which Conditions Have a Clinical Trial Featuring Hydralazine Hydrochloride?

352 active clinical trials are assessing the potential of Hydralazine Hydrochloride to address Hypertensive disease, Congestive Heart Failure and Hypertensive crisis.

Condition

Clinical Trials

Trial Phases

Hypertension

0 Actively Recruiting

Congestive Heart Failure

181 Actively Recruiting

Not Applicable, Phase 1, Early Phase 1, Phase 2, Phase 3, Phase 4

Hypertension

0 Actively Recruiting

Hypertensive disease

3 Actively Recruiting

Not Applicable, Phase 3

Hydralazine Hydrochloride Reviews: What are patients saying about Hydralazine Hydrochloride?

5

Patient Review

8/6/2018

Hydralazine Hydrochloride for High Blood Pressure

I had extremely high blood pressure that didn't respond to other treatments. Once I added hydralazine to my regimen, though, my blood pressure normalized and I'm feeling much better now.

5

Patient Review

8/13/2019

Hydralazine Hydrochloride for High Blood Pressure

This drug saved my life. There were times when my BP was so high I had to consume alcohol to lower it. Drinking like that only made it high again the next day, but now I no longer have to do that thanks to this medication.

5

Patient Review

8/6/2018

Hydralazine Hydrochloride for High Blood Pressure

This treatment was life-saving for me. I have highly resistant hypertension and adding hydralazine to my regimen of valsartan hctz, bystolic, and diltiazem finally normalized my blood pressure.

5

Patient Review

8/13/2019

Hydralazine Hydrochloride for High Blood Pressure

This drug was immensely helpful to me and quite literally saved my life. There were points where my blood pressure was so high that the only thing that would lower it was alcohol. However, this created a rebound effect and raised my BP even higher the next day. Thankfully, I no longer have to rely on such unhealthy methods to manage my blood pressure.

4

Patient Review

11/18/2018

Hydralazine Hydrochloride for High Blood Pressure

After being diagnosed with post-partum hypertension, my doctor put me on hydralazine. This medication really brought down my blood pressure and I experienced few side effects, like a slightly dry mouth. However, four months later my BP has increased again so I'm switching to losartan.

4

Patient Review

2/12/2021

Hydralazine Hydrochloride for High Blood Pressure

As long as I take it consistently, this medication brings my blood pressure down to acceptable levels. I don't care for having to take it 3 times a day, but it's better than having high blood pressure. The side effects are minimal.

4

Patient Review

2/12/2021

Hydralazine Hydrochloride for High Blood Pressure

So long as I take this medication regularly, it effectively lowers my blood pressure. It's not ideal that I have to take it three times a day, but it's manageable and definitely preferable to having high blood pressure. The side effects are practically nonexistent, which is a huge step up from amlodipine.

4

Patient Review

11/18/2018

Hydralazine Hydrochloride for High Blood Pressure

After being diagnosed with post-partum hypertension, I was prescribed hydralazine. This brought my blood pressure down from 180/100 to 130/80. I have had no major side effects, though a slight dry mouth has been noticeable. However, four months later my blood pressure has gone back up to 140/80, so now I am being switched to losartan.

3.7

Patient Review

5/28/2022

Hydralazine Hydrochloride for High Blood Pressure

I developed constipation after taking this medication for two weeks. I've tried everything to relieve it, but nothing has worked so far. This constipation is really affecting my quality of life.

3.7

Patient Review

8/15/2018

Hydralazine Hydrochloride for High Blood Pressure

I was hospitalized with acute pancreatitis and they gave me hydralazine instead of my usual high blood pressure meds. Shortly after receving that one dose, I had trouble breathing, a very congested head and nausea. I never want to see that medicine again.

3.7

Patient Review

5/28/2022

Hydralazine Hydrochloride for High Blood Pressure

After taking this medication for two weeks as directed, I developed terrible constipation. I've tried all the usual remedies to no avail. This has also twice now caused me to take magnesium citrate, which then negatively affects my gut microbiota. So, not sure if I'll be continuing with this prescription.

3.7

Patient Review

8/15/2018

Hydralazine Hydrochloride for High Blood Pressure

After being hospitalized for acute pancreatitis, I was given a single dose of hydralazine. Unfortunately, this led to shortness of breath, congestion, and nausea. Needless to say, I never want to see that medicine again.

3

Patient Review

6/11/2020

Hydralazine Hydrochloride for High Blood Pressure

My blood pressure has been more stable since starting this medication, according to my doctor.

3

Patient Review

6/11/2020

Hydralazine Hydrochloride for High Blood Pressure

My numbers have been all over the place, but I'm feeling much better than before.

2.7

Patient Review

1/15/2020

Hydralazine Hydrochloride for High Blood Pressure

I'm already on one blood pressure medication, and I think my doctor prescribed me another just because they could. I've run out of the second medication, and now I'm wondering if I should take a Hydralazine Tab.

2.7

Patient Review

1/15/2020

Hydralazine Hydrochloride for High Blood Pressure

I think doctors sometimes perscribe more medication than is necessary. I'm already on a blood pressure medication, but I've run out and am wondering if I should take a Hydralazine Tab.

2.3

Patient Review

2/2/2019

Hydralazine Hydrochloride for High Blood Pressure

While this treatment did help with some of my symptoms, it made my ankles and legs swell terribly. I also experienced fluids pooling in the lower half of body, severe headaches, eye pressure, backaches or kidney aches, decreased urination, feet, and hands freezing from lack of circulation. Additionally, I was constantly tired on it. While it wasn't as bad as some other treatments I've tried, I wouldn't recommend it.

2.3

Patient Review

2/2/2019

Hydralazine Hydrochloride for High Blood Pressure

Although this medication did decrease my chest pain, it also caused a number of other unpleasant side effects, such as severe swelling in my ankles and legs, headaches, eye pressure, backaches or kidney aches, decreased urination, and freezing feet and hands. I also felt like I might get a blood clot in my legs from the leg and calf swelling.

2

Patient Review

10/30/2021

Hydralazine Hydrochloride for High Blood Pressure

I have taken this drug for two weeks with no decrease in blood pressure and a lot of awful side effects: lightheadedness, vision problems, urine retention ,and weight gain. The doctor said it might take a month to work?

2

Patient Review

4/5/2022

Hydralazine Hydrochloride for High Blood Pressure

The side effects were tough to deal with, ranging from nausea and diarrhea to constipation and cramps. I also felt generally ill, weak, and had dry mouth and bad breath.

2

Patient Review

10/30/2021

Hydralazine Hydrochloride for High Blood Pressure

I took this medication for two weeks with no change in blood pressure and some really unpleasant side effects, like lightheadedness, vision problems, weight gain, and difficulty urinating. The doctor said it might take a month to work but I don't know if I can handle these side effects for that long.

2

Patient Review

4/5/2022

Hydralazine Hydrochloride for High Blood Pressure

The side effects were really tough to deal with. I felt nauseous, constipated or diarrhea all the time and my stomach was always growling and cramping. I generally just felt weak and sick. My mouth was dry all the time and my breath smelled terrible.

1

Patient Review

4/28/2019

Hydralazine Hydrochloride for High Blood Pressure

Took one pill and, an hour later, my BP went up to 190 and heart rate to 154. After a trip to the ER (where I had 360 mg of Diltiazem over 12 hours), my heart rate is still 125. I was told by doctors never to take this medication again.

1

Patient Review

6/3/2021

Hydralazine Hydrochloride for High Blood Pressure

I would not recommend this blood pressure medication to anyone. Just two weeks after being prescribed it, my BP spiked to an extremely dangerous level. I had to go to the ER and spend two days in the hospital before they could get it under control.

1

Patient Review

3/2/2020

Hydralazine Hydrochloride for High Blood Pressure

The side effects of this medicine were really bad. I had headaches, dizziness and diarrhea that wouldn't go away. This medicine was terrible.

1

Patient Review

5/4/2021

Hydralazine Hydrochloride for High Blood Pressure

I tried this medication once and had to stop immediately. My heart rate spiked and I got a horrible headache.

1

Patient Review

7/23/2022

Hydralazine Hydrochloride for High Blood Pressure

I haven't taken this yet, and based on what I've read about it, I don't think I will. It seems like it would just aggravate the issues I'm already dealing with.

1

Patient Review

3/2/2020

Hydralazine Hydrochloride for High Blood Pressure

The side effects of this medicine were really terrible. I had headaches, dizziness and diarrhea that just wouldn't go away. My blood pressure also increased because of it. Overall, I would not recommend this medication to anyone.

1

Patient Review

6/3/2021

Hydralazine Hydrochloride for High Blood Pressure

I would urge anyone reading this to avoid this blood pressure medication. Two weeks after I started taking it, my BP spiked dangerously high. I had to go to the ER and ended up staying in the hospital for two days. Thankfully I'm now on a different medication regime, but that experience was really scary.

1

Patient Review

4/28/2019

Hydralazine Hydrochloride for High Blood Pressure

Do not take this medication. I had a very bad reaction to it, including high blood pressure and an elevated heart rate. I had to go to the emergency room and was given 360 mg of diltiazem over 12 hours. Even after that, my heart rate is still 125.

1

Patient Review

5/4/2021

Hydralazine Hydrochloride for High Blood Pressure

I tried this medication once and had such severe side effects that I will never use it again. My heart rate was dangerously high and I had a terrible headache.

1

Patient Review

8/26/2021

Hydralazine Hydrochloride for High Blood Pressure

I have debilitating headaches that nothing seems to help. I'm constantly exhausted, have mental fog and depression, and randomly start crying.

1

Patient Review

7/23/2022

Hydralazine Hydrochloride for High Blood Pressure

Based on what I've read, I don't think this medication is right for me. I already take three different medications for my hp, and I don't want to add anything else to the mix if it's not necessary.

1

Patient Review

8/26/2021

Hydralazine Hydrochloride for High Blood Pressure

Back headaches have been really bad, to the point where nothing seems to help. I'm also dealing with brain fog, depression and crying spells.
image of drug pills surrounding a glass of water symbolizing drug consumption

Patient Q&A Section about hydralazine hydrochloride

These questions and answers are submitted by anonymous patients, and have not been verified by our internal team.

What type of drug is hydralazine hydrochloride?

"Hydralazine is a type of medication known as a vasodilator, which means it helps to widen blood vessels. This makes it easier for blood to flow through the body."

Answered by AI

What are the side effects of hydralazine?

"The following are side effects that may occur as your body adjusts to the medication: headache, pounding/fast heartbeat, loss of appetite, nausea, vomiting, diarrhea, or dizziness. If you experience any of these side effects, tell your doctor or pharmacist."

Answered by AI

What is hydralazine hcl used for?

"Hydralazine is used to lower blood pressure. It is also used to control blood pressure in pregnant women or in emergency situations when blood pressure is extremely high."

Answered by AI

What is the difference between hydralazine and hydralazine hydrochloride?

"Hydralazine relaxes blood vessels to increase blood and oxygen supply to the heart, while reducing its workload. Hydrochlorothiazide is a diuretic that helps reduce water in the body by increasing urine flow."

Answered by AI

Clinical Trials for Hydralazine Hydrochloride

Image of Kaiser Permenante Division of Research in Pleasanton, United States.

EHR Alerts for Metabolic Syndrome

18+
All Sexes
Pleasanton, CA

SWAP-CKM (SWitching to Appropriate Prescription in Cardiovascular-Kidney-Metabolic Syndrome) is a pragmatic, cluster-randomized clinical trial designed to evaluate whether electronic health record (EHR)-based alerts can improve medication prescribing among adults with cardiovascular, kidney, and metabolic (CKM) conditions. The study will include all eligible adult patients receiving care within Kaiser Permanente Northern California (KPNC) who have CKM conditions and opportunities for therapeutic medication substitution. Fifteen service areas are randomly assigned to either an intervention group or a usual care group. Clinicians in the intervention group will receive EHR-based Best Practice Advisories (BPAs) identifying opportunities to replace potentially inappropriate medications with guideline-recommended therapies. The intervention may also include audit-and-feedback reports to support medication optimization. Clinicians retain full discretion over treatment decisions. The primary outcome is the proportion of eligible therapeutic optimization opportunities achieved at 9 months. Secondary outcomes include medication initiation and discontinuation, medication optimization at 18 months, and polypharmacy burden.

Waitlist Available
Has No Placebo

Kaiser Permenante Division of Research

Ankeet S Bhatt, MD, MBA, ScM

Image of University of Colorado Anschutz in Denver, United States.

HEROIC Program for Heart Failure

18+
All Sexes
Denver, CO

This study will test the mechanisms of a multi-component, nurse-led, primary palliative care intervention, HEart failure Resilience Intervention for Caregivers (HEROIC) to improve caregiver mental well-being, patient health-related quality of life and unplanned acute care in the setting of advanced heart failure. The investigators will conduct a multi-site, randomized controlled trial to test proposed mechanisms of action in a large sample (N=500) of persons with heart failure and the caregivers. The investigators will also examine variation in response to HEROIC components by heart failure subgroup (ventricular assist device, heart transplant or medically managed heart failure).

Phase 2
Waitlist Available

University of Colorado Anschutz (+1 Sites)

Martha Abshire Saylor, PhD, RN

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Image of MemorialCare Long Beach Medical Center in Long Beach, United States.

Vivio System for Heart Failure

18+
All Sexes
Long Beach, CA

The purpose of the study is to examine the Vivio System's ability to track heart failure status in subjects, and compare the Vivio System's measurements to CardioMEMS measurements. Heart failure, which is a form of heart disease, is a condition where the heart does not pump enough blood through the body, resulting in the body not getting the amount of oxygen and nutrients it needs. This research study will collect data using CardioMEMS and the Vivio System in subjects over the age of 21 with a currently implanted, or scheduled to be implanted, CardioMEMS device. This group of individuals will provide researchers with important data because the measurements of their health information can be used to determine if the Vivio is as effective at tracking heart failure status as CardioMEMS. This research study is designed to develop new knowledge, and does not provide a direct benefit to study subjects

Waitlist Available
Has No Placebo

MemorialCare Long Beach Medical Center (+3 Sites)

Ventric Health, LLC

Image of Phoenix VA Health Care System, Phoenix, AZ in Phoenix, United States.

Virtual Palliative Care for Heart Failure or COPD

18+
All Sexes
Phoenix, AZ

Many Veterans living with heart failure or chronic obstructive pulmonary disease (COPD) experience significant symptoms - such as breathlessness, fatigue, depression, and anxiety -that reduce their quality of life. Despite how common these symptoms are, they are often not adequately addressed in routine care. This study tests whether a virtual team of a nurse and social worker can improve quality of life, depression, anxiety, and other patient-reported outcomes for Veterans with heart failure or COPD who are at high risk of hospitalization or death. The nurse helps Veterans manage their most bothersome symptoms using a structured approach, and the social worker provides brief counseling to address emotional and psychological concerns. Both work closely with the Veteran's primary care provider and palliative care clinician to coordinate additional care as needed. The study also examines whether enhanced implementation support helps VA sites adopt the program more successfully compared to standard implementation support.

Waitlist Available
Has No Placebo

Phoenix VA Health Care System, Phoenix, AZ (+6 Sites)

David Bekelman, MD MPH

Image of Rocky Mountain Regional VA Medical Center, Aurora, CO in Aurora, United States.

Pharmacist-Assisted Therapy for Heart Failure

18+
All Sexes
Aurora, CO

Many Veterans who are hospitalized with heart failure do not receive all the recommended heart medications at the right doses before they leave the hospital or in the weeks following discharge. This study tests whether a team of clinical pharmacists and cardiologists, working virtually, can improve heart failure medication prescribing for Veterans at VA medical centers. The pharmacist and cardiologist team reviews patient records and provides recommendations to the treating doctors and primary care providers caring for Veterans with heart failure. The goal is to increase use of guideline-recommended medications, which have been shown to improve survival, reduce hospitalizations, and improve quality of life.

Waitlist Available
Has No Placebo

Rocky Mountain Regional VA Medical Center, Aurora, CO

Paul L Hess, MD MS

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Image of Advanced Cardiovascular, LLC in Alexander City, United States.

NNC0487-0111 for Obesity and Heart Failure

18+
All Sexes
Alexander City, AL

This study is being done to look at the safety and effect of NNC0487-0111 in people with Heart Failure with preserved Ejection Fraction (HFpEF) or Heart Failure with mildly reduced Ejection Fraction (HFmrEF) and excess body weight when compared to placebo. The purpose of this clinical study is to find out if NNC0487-0111 is safe and effective for treating people who have HFpEF or HFmrEF and excess body weight. Participants will get NNC0487-0111 or placebo by injection once a week. Which treatment participants get is decided by chance. NNC0487-0111 is a new medicine that doctors cannot prescribe yet, but it has been tested in people before.

Phase 3
Recruiting

Advanced Cardiovascular, LLC (+99 Sites)

Clinical Transparency (dept. 2834)

Novo Nordisk A/S

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