Side Effects

Some common side effects

Modafinil is a stimulant prescribed to increase wakefulness in patients with excessive sleepiness related to narcolepsy, shift work sleep disorder and sleep apnea syndrome. There are some common side effects:

  • Dry mouth
  • Anxiety
  • Nervousness
  • Nausea
  • Headache
  • Dizziness
  • Diarrhea
  • Backache
  • Runny Nose

Rare side effects

If you tend to experience these side effects, immediately consult the doctor.

  • Chest Pain
  • Fever
  • High Blood Pressure
  • Low Blood pressure
  • Sugar
  • Memory Loss
  • Fast/Slow Heartbeat
  • Chills
  • Mood Swings
  • Throat Irritation
  • Depression
  • Bleeding

Modafinil has not been adequately studied in pregnant women and it is unknown if it is excreted in breast milk. Consult your doctor before breastfeeding.

Severe side effects

  • Blood Urine
  • Hives
  • Asthma
  • Skin Rash
  • Peeling of Skin
  • Hyperactive Behavior
  • Abnormal Liver test
  • Visible Water Retention
  • Blistering of the Skin
  • Manic Behavior
  • Mental Issue
  • Abnormal Heart Electrical Signal
  • Low Level of White Blood Cells
  • Inflammation of the Middle Tissue Heart Muscle

Less Severe side-effects

  • Constipation
  • Flu
  • Muscle Tremors
  • Vomiting
  • Numbness and Tingling
  • Decreased Appetite
  • Gas
  • Itching
  • Sweating
  • Agitation
  • Taste Impairment
  • Sour Mouth
  • Weakness

Get Emergency Medical Assist if you have signs of an allergic reaction: hives, difficulty breathing, swelling of your face, lips, tongue, or throat.
Above-all it is not a complete list of side effects and others may occur. Call your doctor for medical information about side effects.