What side effects may I notice from receiving Isoxsuprine Hydrochloride?

Side effects that you should report to your doctor or health care professional as soon as possible:
-chest pain
-breathing problems
-dizziness or faintness
-fast or irregular heartbeat
-skin rash or hives

Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
-drowsiness
-flushing
-headache
-nausea or vomiting
-weakness

This list may not describe all possible side effects for Isoxsuprine Hydrochloride. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.