In the case of Indocin, precautions and warnings to be aware of include such things as interactions that may occur with other drugs (such as other NSAIDs). Other precautions and warnings for Indocin users include an increased risk for high blood pressure, ulcers, and congestive heart failure. Additional Indocin precautions and warnings involve avoiding the medication if you are nursing or are in the third trimester of pregnancy.
Any allergies to medicines, including aspirin or other NSAID pain medicines.
Also, let your healthcare provider know if you:
Are pregnant or thinking about becoming pregnant
Are breastfeeding
Drink alcohol frequently
Smoke
Are having or have recently had heart surgery.
Don't forget to tell your healthcare provider about all other medicines you may currently be taking, including prescription and non-prescription medicines, vitamins, and herbal supplements.