Hypertension. Calan is used in the treatment of hypertension for lowering the elevated blood pressure.
Arrhythmia. Calan is used to treat conditions like Supraventricular Tachycardia characterized by irregular heartbeats.
Angina pectoris. Calan is used in the treatment of Angina Pectoris which is a type of heart disease characterized by chest pain
ConcernsThe effect of this medicine can be observed within 1 to 2 hours after an oral dose and within 1 to 5 minutes after an intravenous dose.
The effect of this medicine lasts for an average duration of 10 to 20 minutes after an intravenous dose and 6 to 8 hours after an oral dose.
Consumption of alcohol is not recommended while receiving this medicine due to the increase in the risk of side effects such as dizziness and confusion. It is advised that you do not perform any activities that require high mental alertness like driving a vehicle or operating machinery if you consume alcohol while taking this medicine.
No habit forming tendency has been reported.
This medicine is not recommended for use in pregnant women unless necessary. The risks and benefits should be discussed with the doctor before taking this medicine.
This medicine is recommended for use in breastfeeding women only if necessary. The risks and benefits should be discussed with the doctor before taking this medicine.
General InstructionsTake Calan as instructed by the doctor. Do not consume larger amounts than prescribed. Inform the doctor if you have any heart diseases and liver diseases before taking this medicine. Monitoring of blood pressure is necessary while receiving this medicine.
Missed DoseThe missed dose should be taken as soon as possible. It is advisable to skip the missed dose if it is already the time for your next scheduled dose.
OverdoseSeek emergency medical treatment or contact the doctor in case of an overdose.
Other detailsCan be taken with or without food, as advised by your doctor.
To be taken as instructed by a doctor.
Does not cause sleepiness.
How it worksThis medicine works by blocking the entry of calcium into the muscles. This results in relaxation of the muscles and a decrease in heart rate and blood pressure.
The most common side effects associated with Calan are:
Allergy. This medicine is not recommended for use in patients with a known allergy to verapamil or other calcium channel blockers.
Cardiogenic shock. This medicine is not recommended for use in patients with low blood pressure or cardiogenic shock.
Heart block greater than first degree. This medicine is not recommended for use in patients with a second or third-degree atrioventricular block.
Atrial Fibrillation. This medicine is not recommended for use in patients with atrial flutter or atrial fibrillation and an accessory bypass tract.
InteractionsAll drugs interact differently for person to person. You should check all the possible interactions with your doctor before starting any medicine.
Interaction with AlcoholConsumption of alcohol is not recommended while receiving this medicine due to the increase in the risk of side effects such as dizziness and confusion. It is advised that you do not perform any activities that require high mental alertness like driving a vehicle or operating machinery if you consume alcohol while taking this medicine.
Interaction with MedicineLiver Disease. Calan should be used with caution in patients with a history of liver disease or active liver disease. Close monitoring of liver function is necessary while receiving this medicine. The dose should be adjusted based on the clinical condition.
Food interactionsConsumption of grapefruit juice is not recommended while receiving this medicine due to an increase in the risk of side effects such as dizziness, headache, and swelling of hands and feet. Your dietitian/doctor may suggest appropriate changes in your diet based on your clinical condition.
Warnings for special populationPregnancy. This medicine is not recommended for use in pregnant women unless necessary. The risks and benefits should be discussed with the doctor before taking this medicine.
Breastfeeding. This medicine is recommended for use in breastfeeding women only if necessary. The risks and benefits should be discussed with the doctor before taking this medicine.
General warningsNeuromuscular Transmission Diseases. Calan is not recommended for use in patients with neuromuscular transmission diseases like myasthenia gravis or advanced Duchenne muscular dystrophy due to the increased risk of worsening of these conditions. The dose of the medicine may be adjusted or an alternative medicine may be considered based on the clinical condition.
Hypotension. Calan may decrease the blood pressure below normal and may cause dizziness. Close monitoring of blood pressure is necessary while receiving this medicine. The dose of the medicine may be adjusted or an alternative medicine may be considered based on the clinical condition.
Q: Safe with alcohol?
A: Consumption of alcohol is not recommended while receiving this medicine due to the increase in the risk of side effects such as dizziness and confusion. It is advised that you do not perform any activities that require high mental alertness like driving a vehicle or operating machinery if you consume alcohol while taking this medicine.
Q: Is it habit-forming?
A: No habit-forming tendencies were reported.
Q: Usage in pregnancy?
A: This medicine is not recommended for use in pregnant women unless necessary. The risks and benefits should be discussed with the doctor before taking this medicine.
Q: Usage while breastfeeding?
A: This medicine is recommended for use in breastfeeding women only if necessary. The risks and benefits should be discussed with the doctor before taking this medicine.
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