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
Less common
Cough; fever or chills - continuing or severe; general feeling of discomfort, illness or weakness; hoarseness; mouth sores; pain, swelling, or redness in joints; throat infection
Rare
Yellow eyes or skin
Check with your family doctor as soon as possible if any of the following side effects was happen
More common
Fever - mild and temporary; skin rash or itching
Rare
Backache; black, tarry stools; blood in urine or stools; shortness of breath; increase in bleeding or bruising; increase or decrease in urination; numbness or tingling of fingers, toes, or face; pinpoint red spots on skin; swelling of feet or lower legs; swollen lymph nodes; swollen salivary glands
Symptoms of overdose
Changes in menstrual periods; coldness; constipation; dry, puffy skin; headache; listlessness or sleepiness; muscle aches; swelling in the front of the neck; unusual tiredness or weakness; weight gain - unusual
Other 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:
Less common
Dizziness; loss of taste - for methimazole; nausea; stomach pain; vomiting
More common side effects not listed above may also occur in some diseaseds. If you notice any other problems, check with your family doctor.