1 What is Quin-G?

Brand: Quin-G

Generic: Quinidine

Quin-G is an anti-arrhythmic drug, used to treat heart rhythm disorders. This medication is also classified as an anti-malarial drug and is used to treat malaria.


Read your medication guide and follow your doctor’s prescription at all times.

  • Take Quin- G orally/ by mouth per doctor’s prescription.
  • The dosage depends on your medical condition or treatment response. Do not adjust your dose without your doctor’s recommendation.
  • Do not break, chew or crush sustained- release tablet form of Quin- G to prevent releasing the content of this medication all at once, which may intensify side effects.
  • Continue taking Quin- G on a regular schedule (same time of the day). Do not stop taking this medication abruptly without consulting your doctor.

Inform your doctor immediately if your condition aggravates or does not improve.

Take your missed dose as soon as possible. However, make sure that the time interval between the missed and the next dose is not too close. Otherwise, stick with the regular schedule and leave out the missed dose. Do not double dose to cover up a missed dose. Record your missed dose and inform your doctor immediately if you missed several doses.


Quin-G may interact with:

  • Cimetidine
  • Digoxin
  • Ketoconazole
  • Rifampin
  • Warfarin
  • Diuretics or water pills
  • Acetazolamide
  • Medications for the heart and blood pressure (i.e. diltiazem, felodipine, nicardipine, propranolol, verapamil)
  • Phenothiazine (i.e. chlorpromazine, promethazine)
  • Anticonvulsant/ anti- seizure drugs (i.e. phenytoin, phenobarbital)
  • Sodium bicarbonate
  • Potassium citrate
  • Citric acid and
  • Antidepressant medications (i.e. amitriptyline, clomipramine)

Some drugs may either lessen the beneficial effects or worsen the side effects of Quin- G. Likewise, Quin- G may make some drugs less efficient or intensify their side effects.

Make sure to inform your doctor about all other drugs you are currently taking or using (prescribed and non-prescribed medications including vitamins, minerals, and herbal products) to check for possible drug interaction with Quin- G.

Never alter the doses of other medications while on Quin- G neither stop nor start any medicine without the doctor’s recommendation.

Side Effects:

There are no side effects known aside from a possible allergic reaction in people who have previous or unknown hypersensitivity to the drug.

Watch out for signs of allergic reactions such as:

  • Rash
  • Itching
  • Swelling


Before taking Quin-G, tell your health care provider if you have/are:

  • Pregnant, planning to get pregnant or currently breastfeeding a baby (It is not known if Quin- G can harm the unborn child but it can pass through breast milk that may harm the nursing child. The risks and benefits of using this medication during pregnancy must be discussed well with your doctor.)

2 Related Clinical Trials