Check out our most popular compounded medications! Get Started
Dashboard
Formulas

Quinidine Sulfate 300 mg Slow Release Capsules

FDA-approved generic
Dose form
Slow Release Capsules
Active ingredients
Quinidine Sulfate

Quinidine Sulfate 300 mg Slow Release Capsules, formulated with Methocel E4M, are designed to gradually release the active ingredient over an extended period. This controlled-release mechanism offers sustained therapeutic effects, reduces dosing frequency, and improves patient compliance. These capsules are used to treat conditions such as Atrial Fibrillation, Ventricular Arrhythmia, Atrial Flutter, Wolff-Parkinson-White Syndrome, and Supraventricular Tachycardia.

View more
For prescribers
Prescription details
RxThis formula
Dose formSee below
Quantity____
SigAs directed by prescriber
Refills____
PharmacyBayview Pharmacy, Warwick RI, NCPDP 4106882
Copy prescription detailsOrder form
Controlled substance: e-prescribe (EPCS) from your EHR. Faxed and phoned prescriptions cannot be accepted for this preparation.
Send it from your EHR, or fax to (401) 284-4506. How to e-prescribe this formula
Licensed to fill prescriptions for patients in RI, MA, CT, NJ, NH, FL, ME and PA. New York patients are served on a limited basis while nonresident registration is pending.
To prescribe, you must be a verified prescriber.
To prescribe, you must be in a state where we hold an active out-of-state pharmacy license.
Starting at
Get started as a patient
Get Started
This medication requires a prescription from your doctor
Ships within 1 to 2 business days after pharmacist verification
HSA and FSA eligible
Check if we ship to your state
No prescription yet?

Get a one-page sheet with everything your doctor needs to prescribe this and send it to Bayview.

Licensed to fill prescriptions for patients in RI, MA, CT, NJ, NH, FL, ME and PA. New York patients are served on a limited basis while nonresident registration is pending.

For prescribersSign in for prescription details and order forms.
Compounded preparations are prepared by Bayview pursuant to a prescription for an individual patient. They are not FDA-approved and have not been evaluated by FDA for safety or effectiveness.
Quinidine Sulfate
Slow Release Capsules
6427079ea64324789451917d
Service area

Can we ship this formula to your state?

Bayview fills prescriptions for patients in Connecticut, Florida, Maine, Massachusetts, New Hampshire, New Jersey, Pennsylvania and Rhode Island. New York patients are served on a limited basis while nonresident pharmacy registration is pending.

Check your state

Available in

Tap a state to check it.

Our current service area

Currently licensed Limited basis, registration pending Not available for this formula Not currently licensed

Select a state on the map or use the checker.

Formula Information

A small arrow pointing down

Quinidine Sulfate 300 mg Slow Release Capsules are a specialized medication primarily used in the treatment of various cardiac arrhythmias, including atrial fibrillation, atrial flutter, and ventricular tachycardia. This particular formulation is compounded with Methocel E4M, a type of controlled-release polymer. The purpose of this polymer is to gradually release the encapsulated medication, in this case, quinidine sulfate, over an extended period of time.

The slow and steady release of the active ingredient allows for a more consistent therapeutic effect, offering sustained relief from the symptoms of cardiac arrhythmias. This controlled and prolonged release profile not only enhances the efficacy of the medication but also reduces the dosing frequency, thereby improving patient compliance. Furthermore, the slow release formulation helps to mitigate the risk of potential side effects associated with quinidine sulfate, such as dizziness, nausea, and headache.

However, it is crucial to note that quinidine sulfate can interact with other medications. Therefore, it is strongly recommended to discuss all current medications with your healthcare provider before initiating this treatment.

If you have any questions or concerns about Quinidine Sulfate 300 mg Slow Release Capsules, please do not hesitate to contact us at Bayview Pharmacy. Our team of experienced and dedicated pharmacists is always here to assist you with your medication needs and queries.

Drug Interactions

A small arrow pointing down

Quinidine Sulfate 300 mg Slow Release Capsules are a compounded formulation designed to treat certain heart rhythm disorders, including atrial fibrillation, atrial flutter, and ventricular tachycardia. These capsules are formulated with Methocel E4M, a type of controlled-release polymer, which allows for the gradual release of the encapsulated medication over an extended period of time. This slow release mechanism offers sustained therapeutic effects, reduces the frequency of dosing, and improves patient compliance for medications requiring a controlled and prolonged release profile.

It's important to note that Quinidine Sulfate 300 mg Slow Release Capsules may interact with other medications, including but not limited to antacids, anticoagulants, antiarrhythmics, antibiotics, antifungals, antidepressants, antihistamines, and diuretics. Therefore, patients should inform their healthcare provider of all medications they are currently taking, including over-the-counter medications, vitamins, and herbal supplements.

Patients should also inform their healthcare provider of any existing medical conditions, particularly liver or kidney disease, heart disease, or electrolyte imbalances. Quinidine Sulfate 300 mg Slow Release Capsules should not be taken if the patient is pregnant or breastfeeding. Additionally, alcohol consumption should be avoided while taking this medication.

Quinidine Sulfate 300 mg Slow Release Capsules work by slowing the heart rate and helping the heart beat more regularly. However, they may also be used to treat other conditions as determined by your healthcare provider. If you have any questions about the use of Quinidine Sulfate 300 mg Slow Release Capsules, please consult with your healthcare provider.

How Does it Work

A small arrow pointing down

Quinidine Sulfate 300 mg Slow Release Capsules are a specialized formulation designed to treat conditions such as atrial fibrillation, ventricular tachycardia, and atrial flutter. This unique formulation incorporates Methocel E4M, a controlled-release polymer, which ensures the gradual release of the active ingredient, quinidine sulfate, over an extended period. This slow release mechanism helps maintain a steady level of the drug in the body, providing consistent therapeutic effects.

The capsule is designed to be taken once daily, with or without food. Consistency is key, so it's important to take the capsule at the same time each day to ensure stable levels of the drug in the body. Quinidine sulfate works by blocking certain electrical signals in the heart, helping to regulate heart rate and rhythm. It's crucial to follow your doctor's prescription, as it can take several weeks for the full effects of the medication to be seen.

Regular monitoring of your heart rate and rhythm is recommended while taking quinidine sulfate. If you experience any side effects such as dizziness, lightheadedness, or an irregular heartbeat, it's important to contact your doctor immediately. Quinidine sulfate may interact with other medications, so it's essential to inform your doctor of any other drugs you are currently taking.

If you have any questions or concerns about Quinidine Sulfate 300 mg Slow Release Capsules, please don't hesitate to reach out to us at Bayview Pharmacy.

Other Uses

A small arrow pointing down

Quinidine Sulfate 300 mg Slow Release Capsules are formulated with Methocel E4M, a type of controlled-release polymer. This design allows for the gradual release of the encapsulated medication over an extended period of time, offering sustained therapeutic effects, reduced dosing frequency, and improved patient compliance for medications requiring a controlled and prolonged release profile.

These capsules may be used to treat various cardiac arrhythmias such as atrioventricular nodal re-entry tachycardia, junctional tachycardia, and atrial tachycardia. They may also be beneficial for patients with structural heart disease experiencing ventricular tachycardia. In a hospital setting, these capsules may be used to treat ventricular fibrillation, atrial flutter, Wolff-Parkinson-White Syndrome, and supraventricular tachycardia.

Quinidine Sulfate 300 mg Slow Release Capsules may also be used to treat atrial fibrillation in patients who are unable to take other medications due to drug interactions or other contraindications. However, they should be used with caution in patients with certain medical conditions, such as liver or kidney disease, heart failure, or electrolyte imbalances.

Patients using Quinidine Sulfate 300 mg Slow Release Capsules should be monitored closely for any signs of adverse reactions, such as dizziness, nausea, or irregular heartbeat. Additionally, any changes in blood pressure or heart rate should be closely observed. These capsules should not be used in patients who are pregnant or breastfeeding.

If you have any questions about the use of Quinidine Sulfate 300 mg Slow Release Capsules, please reach out to your healthcare provider for further information and guidance.

Frequently Asked Questions

A small arrow pointing down

What is Quinidine Sulfate 300 mg Slow Release Capsules?

Quinidine Sulfate 300 mg Slow Release Capsules is a medication that is encapsulated in a controlled-release polymer, Methocel E4M. This formulation is designed to gradually release the active ingredient over an extended period of time, offering sustained therapeutic effects.

What is the purpose of the Methocel E4M in the formulation?

Methocel E4M is a type of controlled-release polymer. It is used in the formulation to ensure that the medication is released gradually over a prolonged period, reducing the frequency of dosing and improving patient compliance.

What are the benefits of a slow release formulation?

A slow release formulation offers several benefits. It provides sustained therapeutic effects over an extended period, reduces the frequency of dosing, and improves patient compliance, especially for medications that require a controlled and prolonged release profile.

How often should I take Quinidine Sulfate 300 mg Slow Release Capsules?

The frequency of dosing will depend on your doctor's prescription. However, due to the slow release formulation, the frequency of dosing is typically reduced compared to other forms of medication.

What happens if I miss a dose?

If you miss a dose, take it as soon as you remember. If it is near the time of the next dose, skip the missed dose. Do not double the dose to catch up. Always follow your doctor's instructions.

Can I break or crush the capsules?

No, the capsules should not be broken or crushed. Doing so can release all of the drug at once, increasing the risk of side effects. The capsule should be swallowed whole.

What should I do if I experience any side effects?

If you experience any side effects, contact your doctor or pharmacist immediately. While not everyone experiences side effects, it's important to communicate any changes in your health to your healthcare provider.

Can I take this medication with other drugs?

Before starting any new medication, you should always inform your doctor about any other drugs you are currently taking. This includes prescription medications, over-the-counter drugs, and herbal products.

Can I drink alcohol while taking this medication?

It's generally recommended to avoid alcohol while taking medication as it can increase the risk of side effects. However, you should always consult your doctor for specific advice.

Can I take this medication if I am pregnant or breastfeeding?

If you are pregnant or breastfeeding, you should inform your doctor before starting this medication. Your doctor will be able to advise you on the best course of action based on your specific circumstances.

About this compounded preparation

This formulation is compounded by Bayview Pharmacy on a prescriber's order for an individual patient. It is not an FDA-approved drug product, and the FDA has not evaluated it for safety, effectiveness, or manufacturing quality.

The conditions listed on this page are indications prescribers have ordered this preparation for. They are not FDA-approved indications, and listing them is not a statement that this preparation is effective for them.

A valid prescription is required. Availability depends on Bayview's licensure in your state. This page is general information, not medical advice — discuss your situation with a licensed healthcare provider.

Formulas and/or material listed are not to be interpreted as a promise, guarantee or claim of therapeutic efficacy or safety. The information contained herein is not intended to replace or substitute for conventional medical care, or encourage its abandonment. Every patient is unique, and formulas should be adjusted to meet their individual needs.

No compounded medications are reviewed by the FDA for safety or efficacy.
For prescribers

How to e-prescribe this formula

Controlled substance: e-prescribe only (EPCS). Faxed, phoned, and handwritten prescriptions cannot be filled. Rhode Island law (R.I. Gen. Laws § 21-28-3.18) requires Schedule II to V prescriptions to be transmitted electronically.
1

Find Bayview in your EHR's pharmacy directory

Search by NCPDP 4106882, or by name and ZIP: Bayview Pharmacy, Warwick, RI 02886. Select it as the destination pharmacy and save it as a favorite. Click any value to copy it.

NCPDP4106882NPI1750455143Address3844 Post Rd, Warwick, RI 02886Phone(401) 284-4505Fax(401) 284-4506
2

Enter the formula as a compound

Compounded preparations have no NDC, so this formula will not appear in your EHR's drug search. Use your system's compound, non-formulary, or free-text prescription entry and name the preparation exactly as written in step 3. If your EHR forces you to pick a listed drug, pick the closest entry for the active ingredient and put the full formula in the prescription body (the Sig or directions field), not in Notes to Pharmacy.

Compounded preparations have no NDC and will not appear in your drug search. For EPCS to validate, select a drug entry your EHR recognizes as controlled, usually the bulk powder entry for the active ingredient (for example Ketamine (bulk) powder, not a branded product), then put the full formula from step 3 in the prescription body. A free-text entry that does not validate as controlled will be rejected by your EPCS module.

3

Copy the prescription details

RxFormula name
Dose formDose form
Quantity________
SigAs directed by prescriber
Refills____
PharmacyBayview Pharmacy, Warwick RI, NCPDP 4106882
Copy prescription details

Quantity and directions are starting points for this dose form, not treatment recommendations. Dosing remains the prescriber's responsibility.

4

Send it

Transmit from your EHR. For this non-controlled preparation we also accept fax to (401) 284-4506 and phoned orders at (401) 284-4505. Order forms are on the formulation pages and in the prescriber portal.

Transmit with two-factor authentication through your EPCS-enabled EHR. No order form is offered for this preparation; e-prescribing guides for our controlled preparations are on the formulation pages.

Do not use Notes to Pharmacy for the formula. Some EHRs keep that field internal and never transmit it. A prescription that arrives without the formula is delayed while we call your office.

Licensed to dispense in RI, MA, CT, NJ, NH, FL, ME, and PA; New York is served on a limited basis while nonresident registration is pending. Compounded preparations are not FDA-approved. A valid prescription is required. Full guide, including steps by EHR: How to e-prescribe to Bayview. Questions about this formula: call (401) 284-4505.

Quinidine Sulfate 300 mg Slow Release Capsules
Slow Release Capsules
controlled

Take 1 capsule by mouth

Take 1 capsule by mouth once daily as needed.
Once daily as needed