Dihydralazine
About Dihydralazine
DIHYDRALAZINE is a prescription medicine used to treat moderate to severe high blood pressure (hypertension). It belongs to a class of drugs that help lower blood pressure by relaxing the walls of your blood vessels. Keeping your blood pressure controlled is essential for reducing the risk of serious health emergencies.
To get the best results, you must take DIHYDRALAZINE regularly and exactly as your doctor has prescribed. It can be taken with or without food, but you should choose one method and take it consistently the same way every day. Combining this medication with healthy daily habits, such as eating a low-salt diet and getting regular physical activity, can significantly improve your blood pressure control.
DIHYDRALAZINE is not commonly used as a first-line treatment for high blood pressure in many current treatment guidelines. In modern clinical practice, it is usually reserved for situations where other blood pressure medicines are not suitable or have not provided adequate control. Its use may vary depending on country-specific clinical practice.
While taking this medicine, you may experience some mild side effects like headaches or a fast heart rate. However, you must contact your doctor immediately if you experience more serious symptoms, such as severe joint pain, chest pressure, or a persistent fever.
Do not take this if you have severe coronary artery disease, a history of autoimmune conditions like lupus, or specific heart valve conditions. Before you begin taking DIHYDRALAZINE, tell your doctor if you have kidney or liver issues so they can monitor your health closely.
This medicine can interact with alcohol, which may cause your blood pressure to drop too low and make you feel dizzy or faint. If you are pregnant, planning a pregnancy, breastfeeding, or are an older adult, consult your doctor to discuss whether this medication is safe for your specific situation.
Uses of Dihydralazine
Medicinal Benefits
Although you may not feel any different when your blood pressure is high, taking DIHYDRALAZINE provides critical, long-term health benefits.
- Protects vital organs: Lowering high blood pressure helps shield your heart, brain, and kidneys from the progressive damage caused by excessive blood flow pressure.
- Reduces risk of emergencies: Consistent use of this medication significantly decreases your chances of suffering a heart attack, stroke, or kidney failure.
- Effective combination therapy: It works exceptionally well when taken alongside other blood pressure-lowering drugs to manage challenging cases of hypertension.
Directions for Use
Follow these guidelines to take your medication safely and effectively:
- Swallow the tablet whole with a full glass of water. Do not crush, chew, or break the tablet.
- Take your doses at the same times every day to keep a steady amount of medicine in your body.
- You may take this medicine with or without food, but be consistent with how you take it each day.
- Always follow your doctor's exact instructions regarding your specific schedule.
Storage
Side Effects of Dihydralazine
Common Side Effects (Usually mild)
- Headache
- Rapid or pounding heartbeat
- Flushing (warmth or redness in your face or neck)
- Upset stomach or mild nausea
- Stuffy or runny nose
Serious Side Effects (Call a doctor right away)
- Signs of a severe allergic reaction, such as skin rash, hives, swelling of your face, lips, or throat, and difficulty breathing
- Persistent joint pain, fever, fatigue, or a skin rash over your cheeks and nose (signs of a lupus-like reaction, a rare condition where the immune system mistakenly attacks healthy tissues)
- Chest pain or chest tightness
- Numbness, tingling, or a burning sensation in your hands or feet
- Severe dizziness, lightheadedness, or fainting
Medicines Containing this Salt
View AllDrug Warnings
- Do Not Stop Treatment Abruptly: Do not stop taking DIHYDRALAZINE suddenly, as this can cause your blood pressure to rise rapidly and dangerously.
- Inform Healthcare Providers: Inform your dentist, surgeon, or any medical specialist that you are taking this medication before undergoing any surgery or procedure.
- Watch for Unusual Symptoms: Pay close attention to any new or worsening joint pain, muscle aches, or fever, and report these to your doctor immediately.
- Monitor Your Pulse Rate: Check your pulse regularly; if you notice your heart beating unusually fast while resting, consult your doctor.
- Limit Alcohol Consumption: Limit your alcohol intake, as combining alcohol with this medicine increases the risk of severe dizziness and fainting.
Drug Interactions
Drug-Drug Interactions
Certain medicines can affect how DIHYDRALAZINE works or increase the risk of side effects. Inform your doctor about all prescription medicines, over-the-counter drugs, and herbal supplements you are taking before starting treatment:
- Other blood pressure medications: Taking this medicine alongside other blood pressure-lowering drugs, including water pills (diuretics), can increase the risk of an excessive drop in blood pressure.
- Certain antidepressants: Combining this medication with monoamine oxidase inhibitors (MAOIs) can lead to severe blood pressure drops.
Drug-Food Interactions
Some foods, beverages, and dietary habits may influence the effects of DIHYDRALAZINE. Being aware of these interactions can help improve treatment safety and effectiveness:
- Alcohol: Drinking alcohol while taking this medicine can intensify the blood pressure-lowering effect, causing severe lightheadedness and fainting.
Drug-Disease Interactions
Certain medical conditions may affect how your body responds to DIHYDRALAZINE or increase the likelihood of adverse effects. Tell your doctor about your complete medical history, especially if you have any of the following conditions:
- Coronary artery disease: This medicine can worsen chest pain (angina) or increase the risk of a heart attack in people with coronary artery disease due to changes in heart rate.
- Lupus: People with a history of systemic lupus erythematosus should avoid this medicine as it can trigger or worsen a lupus-like syndrome.
- Kidney or liver damage: Impaired kidney or liver function can slow down how the medicine is cleared from the body, leading to higher drug levels and an increased risk of side effects such as low blood pressure, rapid heartbeat, or dizziness.
Drug-Drug Interactions Checker List:
Safety Advice
Alcohol
unsafeYou are recommended not to consume alcohol along with Dihydralazine to avoid excessive dizziness.
Pregnancy
cautionDihydralazine is a category C pregnancy drug. Dihydralazine is not recommended during pregnancy unless your doctor considers it essential. Your doctor will weigh the benefits and any potential risks before prescribing it to you.
Breast Feeding
cautionTake Dihydralazine only when prescribed. It is known to pass on in a limited quantity via breast milk to the child. Your doctor will weigh the benefits and any potential risks before prescribing it to you.
Driving
cautionDihydralazine may cause dizziness. Drive or operate machinery only if you are alert.
Liver
cautionDihydralazine should be taken with caution, especially if you have a history of Liver diseases/conditions. Your doctor may have to adjust the dose.
Kidney
cautionDihydralazine should be taken with caution, especially if you have a history of Kidney diseases/conditions. Your doctor may have to adjust the dose.
Children
unsafeThe safety and efficacy of Dihydralazine in children have not been established. Dihydralazine is not recommended for children.
Habit Forming
Diet & Lifestyle Advise
- Watch your salt intake: Eat a low-sodium diet to help prevent fluid retention and assist the medicine in keeping your blood pressure under control.
- Change positions slowly: This medicine can make you dizzy when you stand up quickly. Take your time when rising from a sitting or lying position to prevent falls.
- Monitor your blood pressure: Keep a regular log of your blood pressure readings at home and share them with your healthcare provider during your checkups.
- Stay active: Engage in moderate daily exercise, such as walking or cycling, as recommended by your doctor, to support your cardiovascular health.
Special Advise
Monitor your blood pressure daily, and if there is too much fluctuation, then immediately contact your doctor.
Patients Concern
Disease/Condition Glossary
High blood pressure: Hypertension is a chronic condition in which blood pressure and the workload of the heart are too high. This condition can lead to hardened arteries (blood vessels), decreasing the blood and oxygen flow to the heart. Raised blood pressure can cause chest pain (angina) and a heart attack (when the blood supply to the heart is blocked). Additionally, high blood pressure also causes brain damage (stroke) and kidney failure.
FAQs
Dihydralazine is used to treat high blood pressure (hypertension).
No, it is a prescribed drug given by a physician to treat hypertension. Taking it on your own can cause unwanted side effects.
Dihydralazine is a vasodilator or antihypertensive used to treat high blood pressure. It works by relaxing the blood vessels so that blood can flow more easily through the body.
Dihydralazine should not be used if you are allergic to it or if you have coronary artery disease or congestive heart failure.
The typical dosage of Dihydralazine varies depending on your condition, age, and other factors. It's crucial to follow your doctor's specific instructions. They will determine the appropriate dosage and frequency based on your needs.
The safety and efficacy of Dihydralazine in children have not been established, so it is not recommended for them.
The BP-lowering effect can occur in 20–30 minutes following oral administration.
If you or someone else has taken too much hydralazine, get medical help right away. Overdose symptoms may include warmth, headache, and redness of the face, neck, arms, and occasionally, upper chest.
Before taking Dihydralazine, tell your doctor if you also use aspirin. Taking aspirin while on hydralazine may increase the risk of dizziness, headaches, or blurry vision. Ask your doctor for advice.
Dihydralazine can sometimes affect your sex life. Some people may experience reduced sex drive or difficulty achieving or maintaining an erection. If you're having sexual problems while taking hydralazine, talk to your doctor.
Yes, Dihydralazine can normally be consumed with food. This may help to alleviate stomach distress, a typical adverse effect. However, it is critical to follow your doctor's precise instructions, as they may advise taking it on an empty stomach or with a specific type of meal.
While rare, serious side effects of Dihydralazine can occur. These include rapid heartbeat or chest pain, severe allergic reactions, joint or muscle pain, fluid retention or swelling, severe weakness, fever and numbness or tingling in the hands or feet. If you experience any of these symptoms, seek immediate medical attention.
Dihydralazine may interact with other medications, including other blood pressure medications, diuretics, antidepressants, and over-the-counter pain relievers. Always inform your doctor about all your medications, including over-the-counter and herbal supplements.
Dihydralazine is an acceptable antihypertensive medication in nursing mothers, even those nursing newborns. But it should be taken only if prescribed by the doctor.
Take the missed dose as soon as you remember unless it's almost time for your next dose. In this case, skip the missed dose and take your next dose at the regular time. Never take a double dose to make up for a missed one.
Common side effects of Dihydralazine may include abnormal heartbeat, headaches, dizziness, and flushing. These side effects are usually mild and short-lived. However, if the side effects persist, contact your doctor.
Store in a cool and dry place away from sunlight. Keep Dihydralazine out of the sight and reach of children.
Dihydralazine may cause dizziness or lightheadedness, affecting your driving ability. If you experience these side effects, avoid driving until they subside.
Dihydralazine may affect blood sugar levels in people with diabetes. If you have diabetes, it is important to monitor your blood sugar levels closely while taking this medication.
No, you should not stop taking DIHYDRALAZINE even if you feel fine and your blood pressure is normal. High blood pressure often has no symptoms, and the medicine is working to keep it controlled. Stopping suddenly can cause your blood pressure to spike dangerously. Talk to your doctor before making any changes.
Dizziness is a common side effect, especially when you first start taking the medicine or when your dose is increased. Try to rise slowly from a sitting or lying position. If the dizziness is severe, causes you to faint, or does not improve, talk to your doctor.
You should consult your doctor before taking this medication if you are pregnant, planning to become pregnant, or breastfeeding. Your doctor will weigh the benefits and risks to determine the safest treatment plan for you and your baby.
Yes, in some cases, this medication can trigger a reaction that mimics systemic lupus erythematosus. Symptoms include joint pain, fever, fatigue, and a skin rash. If you notice any of these symptoms, contact your doctor immediately.
It is highly recommended to avoid alcohol while taking this medicine. Alcohol can widen your blood vessels further, which can lead to a sudden and severe drop in blood pressure, making you feel extremely dizzy or faint.
A rapid or pounding heartbeat can occur as your body adjusts to the dilated blood vessels. If this symptom is mild, it may improve over time. However, if your heart is beating very fast, or if you also experience chest pain or shortness of breath, talk to your doctor right away.



