Isoxsuprine is a medication used to treat a wide variety of blood circulation problems such as cerebrovascular insufficiency (poor blood flow to the brain), arteriosclerosis (clogged blood vessels) and Raynaud's phenomenon (blood vessels that spasm), says Drugs.com. This medication is a vasodilator, and works to relax the muscles in the blood vessels so that blood can easily flow to all areas of the body. Typically, your doctor will prescribe 10 to 20mg of isoxsuprine daily.
Common Side Effects
According to MedlinePlus, isoxsuprine's common side effects include stomach pain, vomiting, weakness, flushing of the skin and dizziness. Excessive vomiting can lead to dehydration and hypokalemia (low potassium levels). call your doctor if these symptoms remain for three to five days.
Serious Side Effects
Drugs.com indicates that isoxsuprine may cause such serious side effects as chest pain, nausea, irregular heartbeat, weakness or dizziness. The National Library of Medicine says that isoxsuprine can also cause hypotension (low blood pressure), tachycardia (fast heartbeat) and a severe skin rash. Hypotension can lead to fainting spells as the blood in the body fails to circulate. Tachycardia results from the body reacting to isoxsuprine's ingredients. The sympathetic nervous system (nerves controlling the "fight or flight" response) is revved up, and if tachycardia is continuous, it may lead to less blood reaching the rest of the body. Call your medical care professional when you have these symptoms.
Additional Concerns
Do not take isoxsuprine when you are allergic to it. You may develop hives, swelling of your face, tongue or lips, and extreme difficulty breathing. Call 911, as this is a life-threatening medical emergency.
Drugs.com says that it is not clear whether isoxsuprine can harm your baby during pregnancy or breastfeeding. It is best to inform your physician if you decide to breastfeed or become pregnant. He will evaluate the benefits and risks of continuing or discontinuing isoxsuprine. Specifically, the National Library of Medicine says that hypocalcemia (low calcium levels), hypoglycemia (low sugar levels) and low blood pressure occur in babies whose mothers took isoxsuprine.
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