Qrite Tablet

Qrite Tablet is a tablet form of quinidine, an antiarrhythmic medicine used to help control certain abnormal heart rhythms. Each Qrite Tablet contains quinidine as labelled on the pack, making it a prescription-strength option rather than a general heart supplement. Doctors may prescribe Qrite Tablet for specific rhythm problems such as atrial fibrillation/flutter or other arrhythmias when quinidine is appropriate.

How it works: Quinidine helps the heart’s electrical signals move more evenly by slowing the abnormal impulses that can trigger fast or irregular beats. In Qrite Tablet, the medicine is absorbed after swallowing, then works systemically to stabilize heart rhythm.

Because Qrite Tablet is a standard tablet presentation, it is meant to be swallowed whole and dosed according to the exact strength printed on the pack. There are no other Qrite strengths or forms listed here, so this product is used as a doctor-directed quinidine tablet rather than as a lower- or higher-strength alternative. A clinician may choose this tablet form when a regular oral dose is needed and a patient can take tablets by mouth.

• Control of certain abnormal heart rhythms
• Treatment of atrial fibrillation or atrial flutter when prescribed
• Management of selected ventricular arrhythmias
• Rhythm control under specialist supervision

• Swallow Qrite Tablet whole with a glass of water unless your doctor tells you otherwise.
• Take it exactly at the times prescribed; do not change the schedule on your own.
• It can be taken with or without food, but taking it with food may help reduce stomach upset.
• Do not crush or chew unless your prescriber or pharmacist specifically says the tablet can be altered.
• Keep taking it for the full prescribed course even if your heartbeat feels better, unless your doctor tells you to stop.
• If you miss a dose, follow your prescriber’s instructions; do not double up without advice.

Qrite Tablet provides quinidine at the exact strength printed on the label, and that strength may be part of a divided dosing plan rather than a starting dose. Depending on the rhythm problem and your response, it may be taken several times a day, and the maximum daily amount is set by the prescribing doctor because quinidine can affect the heart’s electrical activity. Never use a different schedule or higher total daily dose unless your clinician directs it.

Do not change your dose or stop the medicine without speaking to your doctor.

Common side effects of Quinidine may include:

• Nausea or vomiting
• Diarrhea
• Stomach pain or indigestion
• Dizziness
• Headache
• Blurred vision
• Light sensitivity or ringing in the ears, which may be more noticeable at higher quinidine exposure

• Qrite Tablet is a prescription antiarrhythmic and can worsen rhythm problems if the dose is not individualized.
• Tell your doctor if you have heart block, heart failure, a slow pulse, or a history of QT prolongation.
• Use caution if you drive or operate machinery, especially when you first start Qrite Tablet or if it makes you dizzy.
• Avoid alcohol if it worsens dizziness, stomach upset, or faintness.
• Tell your prescriber about all liver, kidney, and electrolyte problems, since these can increase quinidine risk.
• Do not stop or restart Qrite Tablet without medical advice, because rhythm control may change quickly.
• Seek advice before using other medicines that can also affect heart rhythm.

• Other medicines that prolong the QT interval or affect heart rhythm
• Digoxin, which may have increased levels with quinidine
• Warfarin and other blood thinners
• Certain antibiotics or antifungals that change quinidine levels
• Grapefruit products may alter medicine levels in some patients

Store Qrite Tablet at room temperature in the original strip/box, protected from moisture and out of reach of children.