Hydralazine is a vasodilator that works by relaxing the muscles in your blood vessels to help them dilate.

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What is Hydralazine?

Hydralazine is a drug. It has a direct vasodilatory effect, especially on the smallest arteries. This reduces vascular resistance and causes a decrease in elevated blood pressure.

Hydralazine is used in the treatment of hypertension in combination with other antihypertensive drugs, for example, beta-blockers and/or urinary agents (diuretics).

The adverse effects of Hydralazine

Like any medicine, this one can have side effects, although not everyone experiences them.

At the beginning of treatment or if too high a dose has been started, may occur:

  • accelerated heart rhythm
  • palpitations
  • sudden redness of the face and neck
  • headache
  • nausea

Less commonly reported are:

  • diarrhea
  • blood accumulation in the nose
  • excessive filling of the blood vessels of the conjunctiva of the eye
  • fluid accumulation
  • tremors
  • muscle spasm
  • numbness
  • dizziness
  • disturbance in the nerve impulse conduction
  • decreased blood pressure
  • complaints of chest pain

How to use Hydralazine

Before using, consult your pharmacist, physician, or other health care professional.

What is the usual recommended amount of Griseofulvin

The dosage is determined individually for each patient by the physician. As a maintenance dose, your doctor will prescribe the lowest possible dose that is still effective to minimize the risk of side effects.In case of impaired kidney or liver function, the dosage should be adjusted.

Hydralazine and Fagron

Fagron has been a company within the pharmaceutical compounding sector since 1990. Pharmaceutical compounding is the design, development, production, and marketing of personalized pharmaceutical products. This means that the compounded pharmaceutical product can be customized through, for example, an alternative dosage form, an alternative dosage strength, or a combination therapy. It improves medication adherence and saves lives through fewer side effects because it is customized to the patient's needs.

For this reason, Fagron offers a compounding guide for Hydralazine in the following forms:


While a great deal of effort has been made to ensure the accuracy of the information contained herein, no claims are made as to the uses, safety, efficacy, or bioavailability of these recommendations. The information cannot be construed as (medical) advice, recommendation, or opinion. Health professionals using this information are advised to do so solely if appropriate in their own professional opinion and judgment. Fagron does not accept and cannot be held responsible or liable in any case for the information contained herein.

Hydralazine HCl 4 mg/ml in SyrSpend® SF PH4 (liquid)

Hydralazine 400 mg | SyrSpend® SF PH4 (liquid) qs 100 ml

Hydralazine HCl 4 mg/ml in SyrSpend® SF PH4 (powder for reconstitution)

Hydralazine 400 mg | SyrSpend® SF PH4 (powder for reconstitution) 6.5 g | Purified water qs 100 ml

Hydralazine HCl 4 mg/ml in SyrSpend® SF PH4 NEO (powder for reconstitution)

Hydralazine 400 mg | SyrSpend® SF PH4 NEO (powder for reconstitution) | Purified water qs 100 ml