Country: Australia
Language: English
Source: Department of Health (Therapeutic Goods Administration)
Digoxin
Aspen Pharma Pty Ltd
Medicine Registered
SIGMAXIN- Consumer Medicine Information Page 1 of 4 SIGMAXIN digoxin CONSUMER MEDICINE INFORMATION (CMI) WHAT IS IN THIS LEAFLET This leaflet answers some common questions about SIGMAXIN . It does not contain all the available information. It does not take the place of talking to your doctor or pharmacist. All medicines have risks and benefits. Your doctor has weighed the risks of you taking SIGMAXIN against the benefits they expect it will have for you. IF YOU HAVE ANY CONCERNS ABOUT TAKING THIS MEDICINE, ASK YOUR DOCTOR OR PHARMACIST. KEEP THIS LEAFLET WITH THE MEDICINE. You may need to read it again. WHAT SIGMAXIN IS USED FOR SIGMAXIN belongs to a group of medicines known as cardiac glycosides. They work by slowing down the rate while increasing the force of your heart when it beats. It is used to treat certain heart problems, such as: CHRONIC HEART FAILURE Heart failure is when your heart can’t pump strongly enough to supply blood needed through out the whole body. It is not the same as a heart attack and does not mean that your heart stops. CERTAIN TYPE OF IRREGULAR HEART BEATS Irregular heart rhythms caused by an electrical problem in the upper chamber of your heart. They cause your heart to beat too fast or in an uneven way. Your doctor may have prescribed this medicine for another reason. ASK YOUR DOCTOR IF YOU HAVE ANY QUESTIONS ABOUT WHY SIGMAXIN HAS BEEN PRESCRIBED FOR YOU. There is no evidence that SIGMAXIN is addictive. BEFORE YOU TAKE IT WHEN YOU MUST NOT TAKE IT DO NOT TAKE SIGMAXIN IF YOU HAVE AN ALLERGY TO: digoxin or other cardiac glycosides any of the ingredients listed at the end of th Read the complete document
SIGMAXIN- Product Information Page 1 of 15 PRODUCT INFORMATION NAME OF THE DRUG SIGMAXIN TABLETS contain DIGOXIN 0.250 MG, Lactose, maize starch, hydrolyzed maize starch, rice starch, magnesium stearate. SIGMAXIN PG TABLETS contain DIGOXIN 0.0625 MG, Lactose, maize starch, hydrolyzed maize starch, rice starch, magnesium stearate, povidone, colouring (indigo carmine - CI73015). DESCRIPTION Digoxin has the molecular formula C 41 H 64 O 14 (_CAS_ – 20830 – 75 – 5) with a molecular weight of 781.0. It is practically insoluble in water and in ether and slightly soluble in alcohol. Digoxin is obtained from the leaves of _Digitalis lanata_ and occurs as odourless, colourless or white crystals or a white or almost white powder. PHARMACOLOGY MECHANISM OF ACTIONS: Digoxin is a cardiac glycoside with molecular haemodynamic, neurohumoral and electrophysiological effects contributing to its efficacy in heart failure. Primary action of Digoxin is to reversibly inhibit the alpha subunit of sodium-potassium adenosine triphosphatase (ATPase). This result in inhibitors of sodium-potassium exchange allowing calcium to accumulate in cardiac myocytes by augmenting calcium ion influx. This is responsible for the positive inotropic effect of digoxin or increase force of contraction. This action is more pronounced in decompensated heart failure with systolic dysfunction. O Me OH O O _R_ O Me HO OH 2 O O H HO Me H HO H H Me H H R = SIGMAXIN- Product Information Page 2 of 15 Extracellular potassium promotes dephosphorylation of the ATPase and decreases the affinity of the enzyme for digoxin. Digoxin Read the complete document