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Dynacirc Warnings and Precautions
Make sure to tell your healthcare provider about any medical conditions you have and all medications you are currently taking before using Dynacirc. Warnings and precautions also include watching out for possible drug interactions and using Dynacirc with extreme caution if you have congestive heart failure. In addition, tell your healthcare provider if you are pregnant or breastfeeding before taking Dynacirc.
You should talk with your healthcare provider prior to taking Dynacirc® (isradipine) if you have:
- Congestive heart failure (CHF)
- Any allergies, including allergies to food, dyes, or preservatives.
Also, let your healthcare provider know if you are:
- Pregnant or thinking of becoming pregnant
- Breastfeeding.
Make sure to tell your healthcare provider about all other medicines you are taking, including prescription and non-prescription medicines, vitamins, and herbal supplements.
Warnings and precautions to be aware of prior to taking Dynacirc include the following:
- The medication should be used with caution in people with congestive heart failure (CHF). Calcium channel blockers (such as Dynacirc) can cause fluid retention (edema) and can decrease the heart's ability to pump blood, which can be especially dangerous in people with CHF.
- Dynacirc can cause low blood pressure (hypotension). Be sure to tell your healthcare provider if you have any symptoms of low blood pressure, such as lightheadedness, dizziness, or fainting.
- Dynacirc can interact with a number of medicines (see Dynacirc Drug Interactions).
- Dynacirc is considered a pregnancy Category C medication. This means that it may not be safe to use during pregnancy. Talk to your healthcare provider about the risks and benefits of using the drug when pregnant (see Dynacirc and Pregnancy).
- It is not known if Dynacirc passes through breast milk. Therefore, if you are breastfeeding or plan to start, discuss this with your healthcare provider prior to using the drug (see Dynacirc and Breastfeeding).
Written by/reviewed by: Kristi Monson, PharmD; Arthur Schoenstadt, MD
Last reviewed by: Kristi Monson, PharmD



