Along with its needing effects, a drug may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your family doctor immediately if any of the following side effects was happen
Rare
Black, tarry stools; blood in urine or stools; bone or joint pain; cough or hoarseness; darkening of urine; lower back or side pain; nosebleeds or other unusual bleeding or bruising; painful or difficult urination; pain, tenderness, swelling, or bluish color in leg or foot; pale stools; pinpoint red spots on skin; shortness of breath or cough; sores, ulcers, or white spots on lips or in the mouth; sore throat, chills and fever; swollen or painful glands; unusual tiredness or weakness; wheezing, tightness in chest, or troubled breathing; yellow eyes or skin
Symptoms of overdose
Body spasm in which head and heels are bent backward and body is bowed forward; clumsiness or unsteadiness; convulsions - seizures especially in small children; dizziness - severe or fainting; drowsiness - severe; fast or irregular heartbeat; high or low blood pressure - hypertension or hypotension; irregular, slow, or shallow breathing; large pupils; nausea or vomiting - severe; overactive reflexes followed by underactive reflexes; poor control in body movements - for example, when reaching or stepping; sudden decrease in amount of urine; trembling, twitching, or abnormal body movements
In addition, check with your family doctor as soon as possible if any of the following side effects was happen
More common
Blurred vision or double vision; continuous back-and-forth eye movements
Less common
Behavioral changes - especially in child; confusion, agitation, or hostility - especially in the elderly; diarrhea - severe; headache - continuing; increase in seizures; nausea and vomiting - severe; skin rash, hives, or itching; unusual drowsiness
Rare
Chest pain; difficulty in speaking or slurred speech; fainting; frequent urination; irregular, pounding, or unusually slow heartbeat; mental depression with restlessness and nervousness or other mood or mental changes; muscle or stomach cramps; numbness, tingling, pain, or weakness in hands and feet; rapid weight gain; rigidity; ringing, buzzing, or other unexplained sounds in the ears; sudden decrease in amount of urine; swelling of face, hands, feet, or lower legs; trembling; uncontrolled body movements; visual hallucinations - seeing things that are not there
More common side effects may occur that usually do not need medical attention. These side effects may go away during treat as your body adjusts to the drug. However, check with your family doctor if any of the following side effects continue or are bothersome:
More common
Clumsiness or unsteadiness; dizziness - mild; drowsiness - mild; lightheadedness; nausea or vomiting - mild
Less common or rare
Aching joints or muscles; constipation; diarrhea; dryness of mouth; headache; increased sensitivity of skin to sunlight - skin rash, itching, redness or other discoloration of skin, or severe sunburn; increased sweating; irritation or soreness of tongue or mouth; loss of appetite; loss of hair; sexual problems in males; stomach pain or discomfort
More common side effects not listed above may also occur in some diseaseds. If you notice any other problems, check with your family doctor.