Hydralazine 100mg
Generic For: Apresoline
Hydralazine (brand name Apresoline) is a prescription vasodilator that relaxes blood vessels to lower blood pressure. It is FDA-approved to treat essential hypertension and is sometimes prescribed with other medications for heart failure. After a licensed provider reviews your prescription, your order ships from a licensed U.S. pharmacy.
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100-day supply · $0.30/tablet
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Buy Hydralazine 100mg Online
A vasodilator (antihypertensive) used to treat high blood pressure and, with other medicines, certain cases of heart failure
Hydralazine 100mg Quick Facts
| Drug class | Vasodilator (antihypertensive) |
|---|---|
| Treats | High blood pressure, heart failure (adjunct) |
| Form | Tablet |
| Typical dosing | Take by mouth as directed by physician. |
| Prescription required | Yes — prescription only |
What Is Hydralazine 100mg?
Hydralazine is a prescription medication known as a direct-acting vasodilator. It works by relaxing the smooth muscle in the walls of small arteries, which widens the vessels and lowers blood pressure. Hydralazine is FDA-approved for essential hypertension and is often used alongside other blood pressure medicines. It is available as the brand Apresoline and in generic form, including 100mg tablets.
What Does Hydralazine 100mg Treat?
Essential hypertension (high blood pressure)
Hypertension not controlled by other medications (adjunct)
Heart failure, in combination with nitrates (off-label per guidelines)
Severe hypertension when rapid control is needed (under medical supervision)
Hypertension during pregnancy (used under specialist care)
Hydralazine 100mg Dosage
Initial: 10 mg by mouth four times daily for 2–4 days
Then: 25 mg by mouth four times daily for the remainder of week 1
Maintenance: 50 mg by mouth four times daily; adjust to lowest effective dose (max 300 mg/day)
Your prescriber will determine the dose and duration that are right for you. Always follow the directions on your prescription label.
Hydralazine 100mg Side Effects
Common side effects
- Headache
- Rapid heartbeat (palpitations)
- Loss of appetite
- Nausea or vomiting
- Diarrhea
- Dizziness
- Flushing
- Nasal congestion
Serious side effects
Stop taking this medication and seek medical attention right away if you experience:
- Chest pain (angina) or signs of heart attack
- Drug-induced lupus-like syndrome (joint pain, fever, rash)
- Severe low blood pressure or fainting
- Numbness or tingling in hands or feet (peripheral neuritis)
- Unusual bleeding, bruising, or signs of blood disorders
- Swelling of the face, lips, or throat (allergic reaction)
Warnings & Interactions
Do not use with coronary artery disease or mitral valvular rheumatic heart disease
May cause a lupus-like syndrome, especially at higher doses or with long-term use
Can cause reflex tachycardia; use caution with suspected heart disease
May increase effects of other blood pressure medicines and MAO inhibitors
Do not stop abruptly without talking to your provider
Use caution in advanced kidney disease; dose adjustment may be needed
Tell your provider if you are pregnant or breastfeeding
Tell your prescriber about all medications, supplements, and health conditions before starting hydralazine 100mg.
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