Isoptin Injection (Verapamil Hydrochloride)
Complete patient guide for uses, dosage, side effects, and safety information
Quick Facts
What Is Isoptin Injection Used For?
Isoptin injection is a medication that helps manage certain heart conditions and blood pressure.
Primary Uses
It is primarily used to treat unusual fast heartbeats, high blood pressure (hypertension), poor blood flow to the heart, and to prevent heart problems during surgical procedures.
How It Works
Isoptin injection works by widening blood vessels, allowing more blood and oxygen to reach the heart while simultaneously lowering blood pressure.
Good to know: Isoptin injection is not addictive.
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How to Take Isoptin Injection
Isoptin injection is given by a healthcare provider and should not be self-administered.
Dosage Instructions
The dosage of Isoptin injection will be determined by your doctor based on your specific condition and other factors such as your weight.
What If You Miss a Dose?
As Isoptin injection is administered in a clinical setting, missing a dose is unlikely. Consult your healthcare provider for guidance.
Important: Isoptin injection must only be given by a doctor.
Side Effects
Like all medications, this medicine can cause side effects. Most are mild and temporary, but some require medical attention.
Common Side Effects
These side effects occur relatively frequently and usually don’t require emergency care:
- constipation
- bloating
- nervousness
- dizziness
- light-headedness
- nausea
- vomiting
- headache
- tiredness
- shakiness
- pins and needles
- muscle weakness
- joint pain
- flushing
- tinnitus
- unexpected breast milk secretion
- breast enlargement in men
- impotence
- increased sensitivity to sunlight
- gum enlargement
- excessive sweating
- drowsiness
Seek immediate medical attention if you experience:
- chest pain
- difficulty breathing
- wheezing or coughing
- skin rash, itching, or hives
- swelling of the face, lips, mouth, tongue, or throat
- swelling of hands, ankles, or feet
- severe blisters and bleeding in the lips, eyes, mouth, nose, and genitals
- burning pain in hands and feet with skin redness
- bleeding under the skin
- fast or irregular heartbeat
- shortness of breath
- swelling of feet or legs due to fluid retention
Important Warnings
There are several important considerations before using Isoptin injection.
Who Should Not Take Isoptin Injection
Do not use Isoptin injection if you have had an allergic reaction to it or any of its ingredients, have certain heart conditions, low blood pressure, or are taking specific medications like ivabradine or beta-blockers.
Medical Conditions to Discuss
Inform your doctor if you have had a recent heart attack, liver or kidney disease, or muscle conditions such as myasthenia gravis.
Pregnancy and Breastfeeding
Isoptin injection is not recommended during pregnancy, especially in the first six months, and should be avoided while breastfeeding.
Drug Interactions
Certain medications can interact with Isoptin injection, affecting its efficacy.
Grapefruit interaction: Avoid grapefruit juice as it may increase blood levels of verapamil.
- Beta-blockers (e.g., atenolol, propranolol)
- Ivabradine
- Digoxin
- Diuretics
- Statins (e.g., atorvastatin, simvastatin)
- Direct Oral Anticoagulants (e.g., dabigatran)
- Colchicine
- Psychotropic medications (e.g., imipramine, buspirone)
- Antiepileptic drugs (e.g., phenytoin, carbamazepine)
- Immunosuppressants (e.g., cyclosporin)
- Antibiotics (e.g., erythromycin, clarithromycin)
- General anesthetics
- Muscle relaxants (e.g., dantrolene)
- HIV medications (e.g., ritonavir)
- Theophylline
- Doxorubicin
- Cimetidine
- Metformin and glibenclamide
- Almotriptan
- St John's Wort
Alcohol & Driving
Precautions regarding alcohol consumption and driving while on Isoptin injection.
Alcohol
Avoid alcohol while taking Isoptin injection as it may enhance blood pressure-lowering effects.
Driving and Operating Machinery
Consult your doctor before driving or operating machinery while on this medication.
Storage
Store Isoptin injection in a pharmacy or hospital ward at temperatures below 25 degrees Celsius.
Overdose Information
Overdose is unlikely as Isoptin injection is administered by a healthcare provider. Consult your doctor if you have concerns.
Frequently Asked Questions
The onset of action for Isoptin injection can vary based on individual response, but it is typically administered in a clinical setting for immediate effect.
Isoptin injection is given intravenously and does not require food intake.
No, Isoptin injection is not addictive.
Consult your doctor for guidance, as stopping suddenly may lead to adverse effects.
It is advised to avoid alcohol while on Isoptin injection due to potential increased blood pressure effects.
Weight gain is not listed as a common side effect of Isoptin injection.
Elderly patients should consult their doctor to discuss safety and any potential risks.
Missing a dose is unlikely as Isoptin injection is administered in a healthcare setting. Consult your provider for any concerns.
Important Disclaimer
This information is intended for general educational purposes only and should not be considered medical advice. Always consult your healthcare provider or pharmacist before starting, stopping, or changing any medication.
If you think you may have a medical emergency, call your doctor or emergency services immediately.