Many medications can cause side effects. A side effect is an unwanted response to a medication when it is taken in normal doses. Side effects can be mild or severe, temporary or permanent.

The side effects listed below are not experienced by everyone who takes Rasagiline. If you are concerned about side effects, discuss the risks and benefits of Rasagiline with your doctor.

The following side effects have been reported by at least 1% of people taking Rasagiline. Many of these side effects can be managed, and some may go away on their own over time.

Contact your doctor if you experience these side effects and they are severe or bothersome. Your pharmacist may be able to advise you on managing side effects.

• abdominal pain
• accidental injury
• Constipation
• decreased interest or ability in sexual activity
• Diarrhea
• difficulty moving or controlling movements
• dizziness
• Dry Mouth
• falls
• feeling unwell
• flu-like symptoms
• hair loss
• headache
• heartburn
• joint pain
• lack of coordination
• leg cramps
• loss of appetite
• muscle aches
• nausea
• neck pain
• rash
• red eyes
• runny nose
• sensation of spinning
• sweating
• trouble sleeping
• urgent need to urinate
• vomiting
• weakness
• weight loss

Although most of the side effects listed below don't happen very often, they could lead to serious problems if you do not check with your doctor or seek medical attention.

Check with your doctor as soon as possible if any of the following side effects occur:

• abnormal heartbeat
• behavioural changes (compulsive gambling, compulsive shopping)
• bruising
• dizziness or fainting when rising from a sitting or lying position
• Fever
• hallucinations (hearing, seeing, or feeling things that aren't actually there)
• increase in unusual movements of body (e.g., twisting movements of body, uncontrolled chewing movements, uncontrolled movements of face, neck, back, arms, or legs)
• lip smacking or puckering
• restlessness or desire to keep moving
• severe stomach pain
• signs of Anemia (low red blood cells; e.g., dizziness, pale skin, unusual tiredness or weakness, shortness of breath)
• signs of Depression (loss of interest in activities, sleeping too much, difficulty sleeping, eating more or less than usual, difficulty concentrating)
• signs of infection (symptoms may include fever or chills, severe diarrhea, shortness of breath, prolonged dizziness, cough, headache, stiff neck, weight loss, or listlessness)
• signs of unusual bleeding (bloody or black, tarry stools, vomiting of blood or material that looks like coffee grounds, blood in urine)
• sudden onset of falling asleep without warning

Get medical help immediately if any of the following signs of extremely high blood pressure (caused by the use of Rasagiline with certain foods or other medications) occur:

• chest pain (severe)
• enlarged pupils
• fast or slow heartbeat
• headache (severe)
• increased sensitivity of eyes to light
• increased sweating (possibly with fever or cold, clammy skin)
• nausea and vomiting (severe)
• stiff or sore neck

Stop taking the medication and seek immediate medical attention if any of the following occur:

• agitation or irritability
• dizziness (severe) or fainting
• high or Low Blood Pressure
• increased sweating (possibly with fever or cold, clammy skin)
• rapid or irregular pulse
• severe headache
• shortness of breath, wheezing, difficult breathing
• signs of a Anaphylaxis (severe allergic reaction) (e.g., Hives; difficulty breathing; or swelling of the mouth, lips, tongue, or throat; peeling, blistering skin)
• signs of Heart Attack (e.g., sudden chest pain or pain radiating to back, down arm, jaw; sensation of fullness of the chest; nausea; vomiting; sweating; anxiety)
• signs of Stroke (e.g., sudden or severe headache; sudden loss of coordination; vision changes; sudden slurring of speech; or unexplained weakness, numbness, or pain in arm or leg)

Some people may experience side effects other than those listed. Check with your doctor if you notice any symptom that worries you while you are taking Rasagiline.