Hydralazine 50mg

Generic For: Apresoline

Hydralazine 50mg (brand name Apresoline) is a prescription vasodilator that relaxes blood vessels to help lower high blood pressure. It is also prescribed alongside other medications for certain patients with heart failure. After a licensed provider reviews your prescription, your order ships from a licensed U.S. pharmacy.

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Buy Hydralazine 50mg Tablets Online

Hydralazine (Apresoline) is a vasodilator used to treat high blood pressure and, with other medicines, certain cases of heart failure.

Hydralazine 50mg Quick Facts

Drug classVasodilator (antihypertensive)
TreatsHigh blood pressure, heart failure (adjunct)
FormTablet
Typical dosingTake by mouth as directed by physician.
Prescription requiredYes — prescription only

What Is Hydralazine 50mg?

Hydralazine is a prescription medication known as a vasodilator, meaning it works by relaxing the muscles in the walls of your blood vessels. This allows blood to flow more easily, which lowers blood pressure and reduces the workload on the heart. It is FDA-approved for essential hypertension and is often used together with other blood pressure medicines. Hydralazine is the generic form of the brand-name drug Apresoline and is taken as a tablet by mouth.

What Does Hydralazine 50mg Treat?

Essential hypertension (high blood pressure)
Hypertension not controlled by other medications
Heart failure, in combination with nitrates (as directed by a provider)
Severe hypertension requiring additional therapy
Hypertension during pregnancy (only when prescribed by a specialist)

Hydralazine 50mg Dosage

Start: 10 mg by mouth 4 times daily for the first 2–4 days.
Then: 25 mg by mouth 4 times daily for the remainder of the first week.
Maintenance: 50 mg by mouth 4 times daily; adjust to lowest effective dose per prescriber.

Your prescriber will determine the dose and duration that are right for you. Always follow the directions on your prescription label.

Hydralazine 50mg Side Effects

Common side effects

  • Headache
  • Dizziness
  • Fast heartbeat (palpitations)
  • Nausea or vomiting
  • Loss of appetite
  • Diarrhea
  • Flushing
  • Nasal congestion

Serious side effects

Stop taking this medication and seek medical attention right away if you experience:

  • Chest pain or worsening angina
  • Joint or muscle pain with fever or rash (possible lupus-like syndrome)
  • Unexplained fever, sore throat, or unusual bruising (blood cell changes)
  • Numbness or tingling in hands or feet (peripheral neuritis)
  • Swelling of the face, lips, or throat (allergic reaction)
  • Fainting or severe lightheadedness

Warnings & Interactions

May cause a drug-induced lupus-like syndrome, especially at higher doses or with long-term use
Do not use with coronary artery disease or mitral valvular rheumatic heart disease
Do not use if allergic to hydralazine
May cause reflex tachycardia; use caution with existing heart disease
Can enhance the blood-pressure-lowering effect of other antihypertensives and MAO inhibitors
Do not stop abruptly without talking to your provider
Tell your provider if you are pregnant, planning pregnancy, or breastfeeding

Tell your prescriber about all medications, supplements, and health conditions before starting hydralazine 50mg.

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Frequently Asked Questions

What is hydralazine used for?

Hydralazine is FDA-approved to treat essential hypertension (high blood pressure). Providers also prescribe it with nitrates for certain patients with heart failure. It works by relaxing blood vessels so blood flows more easily.

Do I need a prescription for hydralazine?

Yes. Hydralazine is a prescription-only medication in the United States. A licensed healthcare provider must review your health information and issue a valid prescription before it can be dispensed.

How does ordering and shipping work?

After you place your order, a licensed provider or pharmacist reviews your prescription and health details. Once approved, your medication is dispensed and shipped directly from a licensed U.S. pharmacy to your address.

How quickly does hydralazine lower blood pressure?

Oral hydralazine typically begins working within about an hour, but your provider will adjust the dose gradually over the first weeks. Take it exactly as prescribed and keep follow-up appointments so your blood pressure can be monitored.

What are the most common side effects of hydralazine?

Common side effects include headache, dizziness, fast heartbeat, nausea, and loss of appetite. Many effects lessen as your body adjusts, but contact your provider if they persist or worsen.

Can I stop taking hydralazine if I feel better?

No — do not stop hydralazine suddenly without talking to your provider, as your blood pressure may rise again. High blood pressure often has no symptoms, so continue taking it as directed even if you feel well.

Is hydralazine the same as Apresoline?

Yes. Hydralazine is the generic name for the brand-name drug Apresoline. Both contain the same active ingredient and are held to the same FDA standards.