Do not suddenly stop taking Metoprolol Tartrate . Sharp chest pain, irregular heartbeat, and sometimes heart attack may occur if you suddenly stop Metoprolol Tartrate . The risk may be greater if you have certain types of heart disease. Your doctor should slowly lower your dose over several weeks if you need to stop taking it. This should be done even if you only take Metoprolol Tartrate for high blood pressure. Heart disease is common and you may not know you have it. Limit physical activity while you are lowering your dose. If new or worsened chest pain or other heart problems occur, contact your doctor right away. You may need to start taking Metoprolol Tartrate again.
Tell your doctor or dentist that you take Metoprolol Tartrate before you receive any medical or dental care, emergency care, or surgery.
Tell your doctor if you have a history of diabetes or if you take medicine to lower your blood sugar (eg, glyburide, insulin). Metoprolol Tartrate may hide signs of low blood sugar such as fast heartbeat. Be sure to watch for other signs of low blood sugar (eg, anxiety, chills, dizziness, drowsiness, fainting, headache, tremor, unusual sweating, vision changes, weakness). Tell your doctor right away if these effects occur.
Metoprolol Tartrate should not usually be used by patients who have a history of certain lung or breathing problems (eg, asthma) or who have a certain type of adrenal gland tumor (pheochromocytoma). It may worsen these conditions. Tell your doctor if you have a history of breathing problems or adrenal gland tumors. If you have these conditions and must take Metoprolol Tartrate , your doctor may need to adjust your dose or prescribe additional medicine to reduce the risk of side effects. Check with your doctor for more information.
Tell your doctor if you have a history of overactive thyroid. Metoprolol Tartrate may hide symptoms of overactive thyroid (eg, fast heartbeat). Do not suddenly stop taking Metoprolol Tartrate ; suddenly stopping Metoprolol Tartrate could worsen your condition. Your doctor should slowly lower your dose over several weeks if you need to stop taking it. Check with your doctor for more information.
Metoprolol Tartrate is used for:
Treating high blood pressure, alone or with other medicines; long-term treatment of chest pain; and reducing the risk of death because of heart problems in patients who have had a heart attack. It may also be used for other conditions as determined by your doctor.
Metoprolol Tartrate is a beta-adrenergic blocking agent (beta-blocker). It works by reducing the amount of work the heart has to do (reduces chest pain) and the amount of blood the heart pumps out (lowers high blood pressure). It is also used to stabilize the heart rhythm in conditions in which the heart is beating too fast or at an irregular rhythm.
Do NOT use Metoprolol Tartrate if:
- you are allergic to any ingredient in Metoprolol Tartrate or to another beta-blocker (eg, propranolol)
- you have a very slow heart rate (eg, bradycardia), certain types of irregular heartbeat (eg, atrioventricular [AV] block, sick sinus syndrome), moderate to severe heart failure, very low systolic blood pressure (less than 100 mm Hg), or severe blood circulation problems
- you are taking mibefradil
Before using Metoprolol Tartrate :
Some medical conditions may interact with Metoprolol Tartrate . Tell your doctor or pharmacist if you have any medical conditions, especially if any of the following apply to you:
- if you are pregnant, planning to become pregnant, or are breast-feeding
- if you are taking any prescription or nonprescription medicine, herbal preparation, or dietary supplement
- if you have allergies to medicines, foods, or other substances
- if you have an adrenal gland tumor (pheochromocytoma), have an overactive thyroid, or are scheduled to have surgery
- if you have low blood pressure or a history of heart attack, slow or irregular heartbeat, heart failure, or other heart problems; chest pain or angina; blood circulation problems; or liver problems
- if you have diabetes mellitus, chronic obstructive pulmonary disease (COPD), bronchitis, breathing problems, or a history of asthma
Some MEDICINES MAY INTERACT with Metoprolol Tartrate . Tell your health care provider if you are taking any other medicines, especially any of the following:
- Amiodarone, bupropion, certain HIV protease inhibitors (eg, ritonavir), certain selective serotonin reuptake inhibitors (SSRIs) (eg, fluoxetine, paroxetine), cimetidine, digoxin, diphenhydramine, disopyramide, flecainide, hormonal contraceptives (eg, birth control pills), hydralazine, hydroxychloroquine, ketanserin, mefloquine, mibefradil, phenothiazines (eg, thioridazine), propafenone, quinazolines (eg, alfuzosin), quinidine, terbinafine, thiamines (eg, propylthiouracil), or verapamil because serious side effects such as very slow heart rate and very low blood pressure may occur
- Barbiturates (eg, phenobarbital), indomethacin, or phenylpropanolamine because they may decrease Metoprolol Tartrate 's effectiveness
- Bupivacaine, disopyramide, flecainide, hydralazine, ketanserin, or lidocaine because the risk of their side effects may be increased by Metoprolol Tartrate
- Clonidine because stopping it or Metoprolol Tartrate suddenly can lead to a rapid increase in blood pressure
How to use Metoprolol Tartrate :
Use Metoprolol Tartrate as directed by your doctor. Check the label on the medicine for exact dosing instructions.
- Metoprolol Tartrate is usually given as an injection at your doctor's office, hospital, or clinic. If you will be using Metoprolol Tartrate at home, a health care provider will teach you how to use it. Be sure you understand how to use Metoprolol Tartrate . Follow the procedures you are taught when you use a dose. Contact your health care provider if you have any questions.
- Do not use Metoprolol Tartrate if it contains particles, is cloudy or discolored, or if the vial is cracked or damaged.
- Keep this product, as well as syringes and needles, out of the reach of children and pets. Do not reuse needles, syringes, or other materials. Ask your health care provider how to dispose of these materials after use. Follow all local rules for disposal.
- If you miss a dose of Metoprolol Tartrate , use it as soon as possible. If it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not use 2 doses at once.
Important safety information:
- Metoprolol Tartrate may cause drowsiness, dizziness, or lightheadedness. These effects may be worse if you take it with alcohol or certain medicines. Use Metoprolol Tartrate with caution. Do not drive or perform other possibly unsafe tasks until you know how you react to it.
- Metoprolol Tartrate may cause dizziness, lightheadedness, or fainting; alcohol, hot weather, exercise, or fever may increase these effects. To prevent them, sit up or stand slowly, especially in the morning. Sit or lie down at the first sign of any of these effects.
- Patients who take medicine for high blood pressure often feel tired or run down for a few weeks after starting treatment. Be sure to take your medicine even if you may not feel "normal." Tell your doctor if you develop any new symptoms.
- Do not suddenly stop using Metoprolol Tartrate without first talking your doctor. If your doctor decides you should no longer use Metoprolol Tartrate , you will need to stop Metoprolol Tartrate gradually according to your doctor's instructions.
- If your doctor has instructed you to check your blood pressure and heart rate regularly, be sure to do so.
- Do not take any medicines used to treat colds or congestion without first consulting with your doctor or pharmacist.
- Diabetes patients - Metoprolol Tartrate may hide signs of low blood sugar, such as rapid heartbeat. Be sure to watch for other signs or low blood sugar. Low blood sugar may make you anxious, sweaty, weak, dizzy, drowsy, or faint. It may also make your vision change; give you a headache, chills, or tremors; or make you more hungry. Check blood sugar levels closely. Ask your doctor before you change the dose of your diabetes medicine.
- Tell your doctor or dentist that you take Metoprolol Tartrate before you receive any medical or dental care, emergency care, or surgery.
- If you have a history of any severe allergic reaction, talk with your doctor. You may be at risk for an even more severe allergic reaction if you come into contact with the substance that caused your allergy. Some medicines used to treat severe allergies may also not work as well while you are using Metoprolol Tartrate .
- Lab tests, including liver and kidney function, blood pressure, and complete blood cell counts, may be performed while you use Metoprolol Tartrate . These tests may be used to monitor your condition or check for side effects. Be sure to keep all doctor and lab appointments.
- Metoprolol Tartrate should be used with extreme caution in CHILDREN; safety and effectiveness in children have not been confirmed.
- PREGNANCY and BREAST-FEEDING: If you become pregnant, contact your doctor. You will need to discuss the benefits and risks of using Metoprolol Tartrate while you are pregnant. Metoprolol Tartrate is found in breast milk. If you are or will be breast-feeding while you use Metoprolol Tartrate , check with your doctor. Discuss any possible risks to your baby.
Possible side effects of Metoprolol Tartrate :
All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome:
Seek medical attention right away if any of these SEVERE side effects occur:
Constipation; diarrhea; dizziness; dry mouth/eyes; gas; headache; heartburn; lightheadedness; mild drowsiness; muscle aches; nausea; pain, redness, or swelling at the injection site; stomach pain; trouble sleeping; unusual tiredness or weakness; vomiting.
Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); blue or unusually cold hands or feet; chest pain; fainting; hallucinations; mood or mental changes (eg, confusion, depression); pounding in the chest; severe dizziness or lightheadedness; shortness of breath; slow or irregular heartbeat; swelling of the arms, hands, and feet; vision changes; wheezing; yellowing of the skin or eyes.