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Adverse reactions with Apresoline (hydralazine) are usually reversible when dosage is reduced. However, in some cases it may be necessary to discontinue the drug. The following adverse reactions have been observed, but there has not been enough systematic collection of data to support an estimate of their frequency.
Headache, anorexia, nausea, vomiting, diarrhea, palpitations, tachycardia, angina pectoris.
Digestive: constipation, paralytic ileus.
Cardiovascular: hypotension, paradoxical pressor response, edema.
Neurologic: peripheral neuritis evidenced by paresthesia, numbness, and tingling, dizziness: tremors; muscle cramps; psychotic reactions characterized by depression, disorientation, or anxiety.
Genitourinary: difficulty in urination.
Hematologic: blood dyscrasias, consisting of reduction in hemoglobin and red cell count, leukopenia, agranulocytosis, purpura, lymphadenopathy; splenomegaly.
Hypersensitive Reactions: rash, urticaria, pruritus, fever, chills, arthralgia, eosinophilia, and, rarely, hepatitis.
Other: nasal congestion, flushing, lacrimation, conjunctivitis.
Read the Apresoline (hydralazine) Side Effects Center for a complete guide to possible side effects
MAO inhibitors should be used with caution in patients receiving hydralazine.
When other potent parenteral antihypertensive drugs, such as diazoxide, are used in combination with hydralazine, patients should be continuously observed for several hours for any excessive fall in blood pressure. Profound hypotensive episodes may occur when diazoxide injection and Apresoline (hydralazine) are used concomitantly.
Read the Apresoline Drug Interactions Center for a complete guide to possible interactions
Last reviewed on RxList: 12/8/2004
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Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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