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 as soon as possible if any of the following side effects was happen
More common
Abnormal thinking: holding false beliefs that can't be changed by fact; agitation; anxiety; clenching or grinding of teeth; clumsiness or unsteadiness; confusion; difficulty swallowing; dizziness; excessive watering of mouth; false sense of well being; feeling faint; general feeling of discomfort or illness; hallucinations - seeing, hearing, or feeling things that are not there; hand tremor, increased; nausea or vomiting; numbness; unusual and uncontrolled movements of the body, including the face, tongue, arms, hands, head and upper body; unusual tiredness or weakness
Less common
Blurred vision; difficult urination; difficulty opening mouth; dilated - large pupils; dizziness or lightheadedness when getting up from a lying or sitting position; double vision; fast, irregular, or pounding heartbeat; hot flashes; increased blinking or spasm of eyelids; loss of bladder control; mental depression; other mood or mental changes; skin rash; unusual weight gain or loss
Rare
Back or leg pain; bloody or black tarry stools; chills; convulsions - seizures; fever; high blood pressure; inability to move eyes; loss of appetite; pain, tenderness, or swelling of foot or leg; pale skin; prolonged, painful, inappropriate penile erection; sore throat; stomach pain; swelling of face; swelling of feet or lower legs; vomiting of blood or material that looks like coffee grounds
More common side effects may occur that usually don't needed 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
Abdominal pain; dryness of mouth; loss of appetite; nightmares; passing gas
Less common
Constipation; diarrhea; flushing of skin; headache; hiccups; increased sweating; muscle twitching; trouble in sleeping
This drug may sometimes cause the urine, saliva and sweat to be darker in color than usual. The urine may at first be reddish, then turn to nearly black after being exposed to air. Some bathroom cleaning products will produce a similar effect when in contact with urine containing this drug. This is to be expected during treat with this drug. Always this drug may cause a bitter taste, or a burning sensation of the tongue.
More common side effects not listed above may also occur in some diseaseds. If you notice any other problems, check with your family doctor.