Hypersensitivity, angioedema, allergic reaction, increased appetite, euphoric mood, confusion, irritability, decreased libido, disorientation and insomnia.
Like all medicines, this medicine can cause side effects, although not everybody gets them.
Very common: may affect more than 1 in 10 people: Dizziness, drowsiness, headache.
Common: may affect up to 1 in 10 people: Increased appetite; Feeling of elation, confusion, disorientation, decrease in sexual interest, irritability; Disturbance in attention, clumsiness, memory impairment, loss of memory, tremor, difficulty with speaking, tingling feeling, numbness, sedation, lethargy, insomnia, fatigue, feeling abnormal; Blurred vision, double vision; Vertigo, problems with balance, fall; Dry mouth, constipation, vomiting, flatulence, diarrhea, nausea, swollen abdomen; Difficulties with erection; Swelling of the body including extremities; Feeling drunk, abnormal style of walking; Weight gain; Muscle cramp, joint pain, back pain, pain in limb; Sore throat.
Uncommon: may affect up to 1 in 100 people: Loss of appetite, weight loss, low blood sugar, high blood sugar; Change in perception of self, restlessness, depression, agitation, mood swings, difficulty in finding word, hallucinations, abnormal dreams, panic attack, apathy, aggression, elevated mood, mental impairment, difficulty with thinking, increase in sexual interest, problems with sexual functioning including inability to achieve a sexual climax, delayed ejaculation; Changes in eyesight, unusual movement, changes in vision including tunnel vision, flashes of light, jerky movements, reduced reflexes, increased activity, dizziness on standing, sensitive skin, loss of taste, burning sensation, tremor on movement, decreased consciousness, loss of consciousness, fainting, increased sensitivity to noise, feeling unwell; Dry eyes, eye swelling, eye pain, weak eyes, watery eyes, eye irritation; Heart rhythm disturbances, increased heart rate, low blood pressure, high blood pressure, changes in heart beat, heart failure; Flushing, hot flushes; Difficulty breathing, dry nose, nasal congestion; Increased saliva production, heartburn, numb around mouth; Sweating, rash, chills, fever; Muscle twitching, joint swelling, muscle stiffness, pain including muscle pain, neck pain; Breast pain; Difficulty with or painful urination, incontinence; Weakness, thirst, chest tightness; Changes in blood and liver test results (blood creatinine phosphokinase increased, alanine amino transferase increased, aspartate aminotransferase increased, platelet count decreased, neutropenia, increase in blood creatinine, decrease in blood potassium); Hypersensitivity, swollen face, itchiness, hives, runny nose, nose bleed, cough, snoring; Painful menstrual periods; Coldness of hands and feet.
Rare: may affect up to 1 in 1,000 people: Abnormal sense of smell, swinging vision, altered perception of depth, visual brightness, vision loss; Dilated pupils, cross eyes; Cold sweat, tightness of the throat, swollen tongue; Inflammation of the pancreas; Difficulty in swallowing; Slow or reduced movement of the body; Difficulty with writing properly; Increased fluid in the abdomen; Fluid in the lungs; Convulsions; Changes in the recording of electrical changes (ECG) in the heart which correspond to heart rhythm disturbances; Muscle damage; Breast discharge, abnormal breast growth, breast growth in males; Interrupted menstrual periods; Kidney failure, reduced urine volume, urinary retention; Decrease in white blood cell count; Inappropriate behavior; Allergic reactions (which may include difficulty in breathing, inflammation of the eyes (keratitis) and serious skin reaction characterized by rash, blisters, peeling skin and pain).
If patient experiences swollen face or tongue or if skin turns red and starts to blister or peel, seek immediate medical advice.
Certain side effects may be more common, such as sleepiness, because patients with spinal cord injury may be taking other medicines to treat, for example, pain or spasticity, that has similar side effects to Pregabalin and the severity of these effects may be increased when taken together.