Among the conditions that you should tell your healthcare provider about before you take Focalin are high blood pressure, seizures, and any allergies you may have. To reduce the risk of drug interactions, you should also let your healthcare provider know about all of the drugs you are currently taking. Some other Focalin warnings and precautions include the safety of taking Focalin if you have a history of heart problems or are pregnant or nursing, as well as the risk of becoming dependent on Focalin.
Any allergies, including allergies to foods, dyes, or preservatives.
Also let your healthcare provider know if you are:
Pregnant or thinking of becoming pregnant
Breastfeeding.
It is important to also tell your healthcare provider about all of the medicines you take, including prescription and non-prescription medicines, vitamins, and herbal supplements.