Safety Concerns With Calan SR
Drug Interactions With Calan SRCalan SR can potentially interact with a number of medicines (see Calan SR Drug Interactions for more information).
What Should I Tell My Healthcare Provider?You should talk with your healthcare provider prior to taking this drug if you have:
- Heart disease, including congestive heart failure
- An irregular heart rhythm (arrhythmia), including sick sinus syndrome
- Wolff-Parkinson-White syndrome or Lown-Ganong-Levine syndrome
- Liver disease, including liver failure or cirrhosis
- Low blood pressure
- Kidney disease, including kidney failure (renal failure)
- Duchenne's muscular dystrophy
- Myasthenia gravis
- Any allergies, including allergies to food, dyes, or preservatives.
Also, let your healthcare provider know if you are:
- Pregnant or thinking of becoming pregnant (see Verapamil and Pregnancy)
- Breastfeeding (see Verapamil and Breastfeeding).
Make sure to tell your healthcare provider about any other medicines you are taking, including prescription and nonprescription medicines, vitamins, and herbal supplements.
(Click Calan SR Warnings and Precautions for more information, including information on who should not take this drug.)
What If I Overdose on the Medicine?People who take too much Calan SR may have overdose symptoms that could include:
- Low blood pressure (hypotension)
- A slow heart rate (bradycardia)
- An irregular heart rhythm (arrhythmia)
- High blood sugar (hyperglycemia)
- Decreased mental function
- Fluid in the lungs.
If you happen to overdose on this medicine, seek immediate medical attention.
(Click Verapamil Overdose for more information.)