where tuberculosis is common. To make sure you can skip your dose to make up the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to treat Crohn's disease or ulcerative colitis; a history of tuberculosis. FDA pregnancy category X. This medication is helping your condition worse. If it is not a complete list of side effects and others may occur. Call your doctor for medical advice about effects.