Skin tingling, chills, "goose bumps," stomach pain, or urinary problems (strong/frequent urge to urinate, frequent urination, trouble urinating) may occur. Less common side effects include dry mouth, dizziness, drowsiness, trouble sleeping, or leg cramps. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.
Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
This medication can cause your blood pressure to increase, especially when you are lying down (supine hypertension). Stop taking midodrine and contact your doctor right away if you experience the following signs of supine hypertension: pounding heartbeat, pounding in the ears, headache, blurred vision.
Tell your doctor right away if you have any serious side effects, including: slow heartbeat, unusual feeling in the chest, fainting, pressure/fullness in the head, confusion, anxiety, weakness, vision problems.
A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
In the US - Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.