Insulin glargine is used to treat type 1 (insulin-dependent) diabetes (formerly called 'juvenile-onset'). It is also used to treat people with type 2 (noninsulin-dependent) diabetes (formerly called 'adult-onset') who need long-acting insulin to control their diabetes. Insulin glargine is a long-acting, man-made version of human insulin. Insulin is a hormone made in the pancreas. Insulin helps move sugar from the blood into other body tissues where it is used for energy. It also helps the body break down carbohydrates, fats, and proteins from the diet. In a person with diabetes, the pancreas does not produce enough insulin for the body's needs, so additional insulin is required. People with diabetes may gradually develop serious nerve, blood vessel, kidney, and eye problems if the diabetes is not controlled properly.

This medication is sometimes prescribed for other uses; ask your doctor or pharmacist for more information.

The combination of ipratropium and albuterol, a bronchodilator, is used with other bronchodilators to prevent wheezing, shortness of breath, and troubled breathing caused by chronic obstructive pulmonary disease (COPD). It relaxes and opens the air passages to the lungs, making it easier to breathe.

This medication is sometimes prescribed for other uses; ask your doctor or pharmacist for more information.

The combination of irbesartan and hydrochlorothiazide is used to treat high blood pressure. Irbesartan is in a class of medications called angiotensin II antagonists. It works by blocking the action of certain natural chemicals that tighten the blood vessels, making blood flow more smoothly. Hydrochlorothiazide is in a class of medications called diuretics ('water pills'). It works by causing the the kidneys to get rid of unneeded water and salt from the body into the urine.

Infliximab is used with methotrexate (a medication) to treat the symptoms rheumatoid arthritis (a condition in which the body attacks its own joints, causing pain, swelling, and loss of function) in patients who did not get better when they took methotrexate alone. Infliximab is also used to treat the symptoms of Crohn's disease (a condition in which the body attacks the lining of the digestive tract, causing pain, diarrhea, weight loss, and fever) in patients who have taken other medications and not gotten better. Infliximab is also used to decrease the number of fistulas (abnormal tunnels between two organs or an organ and the skin) and to prevent closed fistulas from reopening in patients with Crohn's disease who have or have had fistulas. Infliximab is in a class of medications called tumor necrosis factor (TNF) inhibitors. It works by blocking the action of TNF, a substance in the body that causes inflammation.

Isotretinoin is in a class of drugs called retinoids. It is used to treat severe acne that has not responded to oral or topical anti-infectives.

This medication should not be prescribed for other uses; ask your doctor or pharmacist for more information.

Isosorbide is used to prevent or treat chest pain (angina). It works by relaxing the blood vessels to the heart, so the blood and oxygen supply to the heart is increased.

This medication is sometimes prescribed for other uses; ask your doctor or pharmacist for more information.

Isoniazid is used alone or with other drugs to treat tuberculosis (TB) and to prevent it in people who have had contact with tuberculosis bacteria. It eliminates only active (growing) bacteria. Since the bacteria may exist in a resting (nongrowing) state for long periods, therapy with isoniazid (and other antituberculosis drugs) must be continued for a long time (usually 6-12 months).

This medication is sometimes prescribed for other uses; ask your doctor or pharmacist for more information.

Insulin is a hormone produced in the pancreas. Insulin is necessary to move sugar from the blood into other body tissues where it is needed for energy. Insulin also helps the body to metabolize (process) carbohydrates, fats, and proteins from the diet. In a person with diabetes, the pancreas does not produce enough insulin for the body's needs, so additional insulin is required. It must be injected because stomach acid would destroy it if taken by mouth. Insulin controls, but does not cure, diabetes. It must be taken regularly. People with diabetes gradually develop serious nerve, blood vessel, kidney, and eye problems, especially if the diabetes is not controlled properly.

This medication is sometimes prescribed for other uses; ask your doctor or pharmacist for more information.

Isoxsuprine is used to relieve the symptoms of central and peripheral vascular diseases such as arteriosclerosis, Buerger's disease, and Raynaud's disease.

This medication is sometimes prescribed for other uses; ask your doctor or pharmacist for more information.

Indapamide, a 'water pill,' is used to reduce the swelling and fluid retention caused by heart disease. It also is used to treat high blood pressure. It causes the kidneys to get rid of unneeded water and salt from the body into the urine.

This medicine is sometimes prescribed for other uses; ask your doctor or pharmacist for more information.

Itraconazole capsules are used to treat fungal infections of the lungs, blood, and toenails. Itraconazole oral solution is used to treat fungal infections of the mouth and throat and suspected fungal infections in patients with fever and signs of infection.

This medication is sometimes prescribed for other uses; ask your doctor or pharmacist for more information.

Isradipine is used to treat high blood pressure. It relaxes your blood vessels so your heart does not have to pump as hard.

This medication is sometimes prescribed for other uses; ask your doctor or pharmacist for more information.

Insulin lispro is used to control blood sugar in people who have diabetes. Insulin lispro is in a class of medications called hormones. People who have diabetes do not produce enough natural insulin, a substance that is needed to break down carbohydrates, fats, and proteins from food and to move sugar from the blood to other parts of the body. Insulin lispro works by replacing the insulin that is normally produced by the body. Insulin lispro starts working more quickly but continues to work for a shorter time than regular insulin. Insulin lispro is always used with other medications for diabetes. You will need to use another type of insulin or take an oral medication, depending on the type of diabetes you have.

Imiquimod is used topically to treat warts on the skin of the genital and anal areas. Imiquimod does not cure warts, and new warts may appear during treatment.

This medication is sometimes prescribed for other uses; ask your doctor or pharmacist for more information.

Ifosfamide ( eye-FOS-fa-mide) belongs to the group of medicines called alkylating agents. It is used to treat cancer of the testicles as well as some other kinds of cancer. Another medicine, called mesna, is usually given along with ifosfamide to prevent bladder problems that can be caused by ifosfamide.

Ifosfamide interferes with the growth of cancer cells, which are eventually destroyed. Since the growth of normal body cells may also be affected by ifosfamide, other effects will also occur. Some of these may be serious and must be reported to your doctor. Other effects, like hair loss, may not be serious but may cause concern. Some effects may not occur until months or years after the medicine is used.

Before you begin treatment with ifosfamide, you and your doctor should talk about the good this medicine will do as well as the risks of using it.

Ifosfamide is to be administered only by or under the immediate supervision of your doctor. It is available in the following dosage form:

Parenteral
• Injection (U.S. and Canada)

Indapamide (in-DAP-a-mide ) belongs to the group of medicines known as diuretics. It is commonly used to treat high blood pressure (hypertension).

High blood pressure adds to the workload of the heart and arteries. If it continues for a long time, the heart and arteries may not function properly. This can damage the blood vessels of the brain, heart, and kidneys resulting in a stroke, heart failure, or kidney failure. High blood pressure may also increase the risk of heart attacks. These problems may be less likely to occur if blood pressure is controlled.

Indapamide is also used to help reduce the amount of water in the body by increasing the flow of urine.

Indapamide is available only with your doctor's prescription, in the following dosage form:

Oral
• Tablets (U.S. and Canada)

Interferons (in-ter-FEER-ons) are substances naturally produced by cells in the body to help fight infections and tumors. They may also be synthetic (man-made) versions of these substances. Alpha interferons are used to treat hairy cell leukemia, malignant melanoma, and AIDS-related Kaposi's sarcoma. They are also used to treat laryngeal papillomatosis (growths in the respiratory tract) in children, genital warts, and some kinds of hepatitis.

Alpha interferons may also be used for other conditions as determined by your doctor.

Alpha interferons are available only with your doctor's prescription, in the following dosage form:

Parenteral
• Interferon Alfa-2a, Recombinant
  • Injection (U.S. and Canada)
• Interferon Alfa-2b, Recombinant
  • Injection (U.S. and Canada)
• Interferon Alfa-n1 (lns)
  • Injection (Canada)
• Interferon Alfa-n3
  • Injection (U.S.)

Strong iodine (EYE-oh-dine) is used to treat overactive thyroid, iodine deficiency, and to protect the thyroid gland from the effects of radiation from radioactive forms of iodine. It may be used before and after administration of a radioactive medicine containing radioactive iodine or after accidental exposure to radiation (for example, from nuclear power plant accidents). It may also be used for other conditions as determined by your doctor.

Strong iodine is available only with your doctor's prescription, in the following dosage form:

Oral
• Oral solution (U.S. and Canada)

Ipratropium ( I-pra-TROE-pee-um) is a bronchodilator (medicine that opens up narrowed breathing passages). It is taken by inhalation to help control the symptoms of lung diseases, such as asthma, chronic bronchitis, and emphysema. Ipratropium helps decrease coughing, wheezing, shortness of breath, and troubled breathing by increasing the flow of air into the lungs.

When ipratropium inhalation is used to treat acute, severe attacks of asthma, bronchitis, or emphysema, it is used only in combination with other bronchodilators.

Ipratropium is available only with your doctor's prescription, in the following dosage forms:

Inhalation
• Inhalation aerosol (U.S. and Canada)
• Inhalation solution (U.S. and Canada)

Isotretinoin (eye-soe-TRET-i-noyn ) is used to treat severe, disfiguring nodular acne. It should be used only after other acne medicines have been tried and have failed to help the acne. Isotretinoin may also be used to treat other skin diseases as determined by your doctor.

Isotretinoin must not be used to treat women who are able to bear children unless other forms of treatment have been tried first and have failed. Isotretinoin must not be taken during pregnancy because it causes birth defects in humans. If you are able to bear children, it is very important that you read, understand, and follow the pregnancy warnings for isotretinoin.

This medicine is available only with your doctor's prescription and should be prescribed only by a doctor who has special knowledge of the diagnosis and treatment of severe, uncontrollable cystic acne.

Isotretinoin is available in the following dosage form:

Oral
• Capsules (U.S. and Canada)

Ivermectin (eye-ver-MEK-tin) is used in the treatment of certain worm infections. It is used to treat river blindness (onchocerciasis) and a certain type of diarrhea (strongyloidiasis). It may also be used for some other kinds of worm infections.

Ivermectin appears to work by paralyzing and then killing the offspring of adult worms. It may also slow down the rate at which adult worms reproduce. This results in fewer worms in the skin, blood, and eyes.

Ivermectin is available only with your doctor's prescription, in the following dosage form:

Oral
• Tablets (U.S., Canada, Africa, Europe, and South America)

Idarubicin ( eye-da-RUE-bi-sin) belongs to the general group of medicines known as antineoplastics. It is used to treat some kinds of cancer, including leukemia.

Idarubicin seems to interfere with the growth of cancer cells, which are eventually destroyed. Since the growth of normal body cells may also be affected by idarubicin, other effects will also occur. Some of these may be serious and must be reported to your doctor. Other effects, like hair loss, may not be serious but may cause concern. Some effects may not occur for months or years after the medicine is used.

Before you begin treatment with idarubicin, you and your doctor should talk about the good this medicine will do as well as the risks of using it.

Idarubicin is to be administered only by or under the supervision of your doctor. It is available in the following dosage form:

Parenteral
• Injection (U.S. and Canada)

Immune globulin intravenous (IGIV) belongs to a group of medicines known as immunizing agents. IGIV is used to prevent or treat some illnesses that can occur when your body does not produce enough of its own immunity to prevent those diseases.

IGIV should be administered only by or under the supervision of your doctor or other health care professional. IGIV is available in the following dosage form:

Parenteral
• Injection (U.S. and Canada)

Infant formulas are used to supply all or part of the nutrients infants need for growth and development. These formulas are used by the body for energy and to form substances for normal body functions.

The amount and type of nutrients contained in infant formulas are regulated by the Food and Drug Administration (FDA). The FDA also regulates the manufacturing process, labeling, and recall procedure for infant formulas.

Infant formulas are available without a prescription. However, they should only be used under medical supervision. They are available in the following forms:

Oral
• Infant Formulas, Hypoallergenic (for infants allergic to milk)
  • Oral concentrate (U.S.)
  • Oral solution (U.S. and Canada)
  • Powder for oral solution (U.S. and Canada)
• Infant Formulas, Milk-based (for infants not allergic to milk)
  • Oral concentrate (U.S.)
  • Oral powder (U.S.)
  • Oral solution (U.S. and Canada)
  • Powder for oral solution (U.S. and Canada)
• Infant Formulas, Soy-based (for infants allergic to milk but not to soy)
  • Oral concentrate (U.S. and Canada)
  • Oral solution (U.S. and Canada)
  • Powder for oral solution (U.S. and Canada)

Ipratropium (i-pra-TROE-pee-um) nasal spray is used to relieve runny nose (rhinorrhea).

The 0.03% nasal solution is used to relieve a runny nose associated with allergic and nonallergic perennial rhinitis. However, it does not relieve the nasal congestion, sneezing, or postnasal drip associated with allergic or nonallergic perennial rhinitis.

The 0.06% nasal solution is used for 4 days to relieve a runny nose associated with the common cold. However, it does not relieve the nasal congestion or sneezing associated with the common cold.

When this medicine is sprayed into your nose, it works by preventing the glands in your nose from producing large amounts of fluid.

Ipratropium is available only with your doctor's prescription, in the following dosage form:

Nasal
• Nasal solution (nasal spray) (U.S. and Canada)

Isoniazid and thiacetazone (eye-soe-NYE-a-zid and thye-a-SEET-a-zone) combination is used to treat tuberculosis (TB). It is given in combination with other medicines to treat TB.

Isoniazid and thiacetazone combination may cause some serious side effects, including damage to the liver. Liver damage is more likely to occur in patients over 50 years of age. This medicine may also cause a severe skin rash, especially in patients infected with the human immunodeficiency virus (HIV). You and your doctor should talk about the good this medicine will do, as well as the risks of taking it.

To help clear up your TB completely, you must keep taking this medicine for the full time of treatment, even if you begin to feel better. This is very important. It is also important that you do not miss any doses.

Isoniazid and thiacetazone combination is available only with your doctor's prescription, in the following dosage form:

Oral
• Tablets (Africa; Asia; Latin America)

Insulin (IN-su-lin) is one of many hormones that helps the body turn the food we eat into energy. Also, insulin helps us store energy that we can use later. After we eat, insulin works by causing sugar (glucose) to go from the blood into our body's cells to make fat, sugar, and protein. When we need more energy between meals, insulin will help us use the fat, sugar, and protein that we have stored. This occurs whether we make our own insulin in the pancreas gland or take it by injection.

Diabetes mellitus (sugar diabetes) is a condition in which the body does not make enough insulin to meet its needs or does not properly use the insulin it makes. Without insulin, glucose cannot get into the body's cells. Without glucose, the cells will not work properly.

To work properly, the amount of insulin you use must be balanced against the amount and type of food you eat and the amount of exercise you do. If you change your diet, your exercise, or both without changing your insulin dose, your blood glucose level can drop too low or rise too high. A prescription is not necessary to purchase most insulin. However, your doctor must first determine your insulin needs and provide you with special instructions for control of your diabetes.

Insulin can be obtained from beef or pork pancreas glands. Another type of insulin that you may use is called human insulin. It is just like the insulin made by humans but it is made by methods called semi-synthetic or recombinant DNA. All types of insulin must be injected because, if taken by mouth, insulin is destroyed in the stomach.

Insulin is available in the following dosage forms:

Parenteral
• Buffered Insulin Human (a regular insulin)
  • Injection (U.S. and Canada)
• Extended Insulin Zinc (an ultralente insulin)
  • Injection
• Extended Insulin Human Zinc (an ultralente insulin)
  • Injection (U.S. and Canada)
• Insulin (a regular insulin)
  • Injection (U.S. and Canada)
• Insulin Human (a regular insulin)
  • Injection (U.S. and Canada)
• Insulin Zinc (a lente insulin)
  • Injection (U.S. and Canada)
• Insulin Human Zinc (a lente insulin)
  • Injection (U.S. and Canada)
• Isophane Insulin (an NPH insulin)
  • Injection (U.S. and Canada)
• Isophane Insulin Human (an NPH insulin)
  • Injection (U.S. and Canada)
• Isophane Insulin Human and Insulin Human (an NPH and a regular insulin)
  • Injection (U.S. and Canada)
• Prompt Insulin Zinc (a semilente insulin)
  • Injection

Ipratropium (i-pra-TROE-pee-um ) and albuterol (al-BYOO-ter-ol) combination is a bronchodilator (medicine that opens up narrowed breathing passages). It is taken by inhalation to help control the symptoms of lung diseases, such as asthma, chronic bronchitis, and emphysema.

Ipratropium in combination with albuterol helps decrease coughing, wheezing, shortness of breath, and troubled breathing by increasing the flow of air into the lungs.

This medicine is available only with your doctor's prescription, in the following dosage form:

Inhalation
• Inhalation aerosol (U.S.)
• Inhalation solution (U.S.)

Indinavir ( in-DIN-a-veer) is used, alone or in combination with other medicines, in the treatment of the infection caused by the human immunodeficiency virus (HIV). HIV is the virus that causes acquired immune deficiency syndrome (AIDS).

Indinavir will not cure or prevent HIV infection or AIDS; however, it helps keep HIV from reproducing and appears to slow down the destruction of the immune system. This may help delay the development of problems usually related to AIDS or HIV disease. Indinavir will not keep you from spreading HIV to other people. People who receive this medicine may continue to have other problems usually related to AIDS or HIV disease.

This medicine is available only with your doctor's prescription, in the following dosage form:

Oral
• Capsules (U.S. and Canada)

Interferon beta-1b (in-ter-FEER-on BAY-ta) is used to treat the relapsing-remitting form of multiple sclerosis (MS). This medicine will not cure MS, but may decrease the number of relapses of the disease.

This medicine is available only with your doctor's prescription, in the following dosage form(s):

Parenteral
• Injection (U.S.)

Insulin lispro ( IN-su-lin LYE-sproe) is a type of insulin. Insulin is one of many hormones that help the body turn the food we eat into energy. This is done by using the glucose (sugar) in the blood as quick energy. Also, insulin helps us store energy that we can use later. When you have diabetes mellitus (sugar diabetes), your body does not produce enough insulin, or the insulin produced is not used properly. This causes you to have too much sugar in your blood. Like other types of insulin, insulin lispro is used to keep your blood sugar level close to normal. Insulin lispro works faster than other types of insulin; therefore, you may have to use insulin lispro in combination with another type of insulin or with a type of oral diabetes medicine called a sulfonylurea to keep your blood sugar under control.

This medicine is available only with your doctor's prescription, in the following dosage form:

Parenteral
• Injection (U.S.)

Insulin glargine (IN-su-lin GLARE-jeen) is a type of insulin. Insulin is one of many hormones that help the body turn the food we eat into energy. This is done by using the glucose (sugar) in the blood as quick energy. Also, insulin helps us store energy that we can use later. When you have diabetes mellitus (sugar diabetes), your body does not produce enough insulin, or the insulin produced is not used properly. This causes you to have too much sugar in your blood. Like other types of insulin, insulin glargine is used to keep your blood sugar level close to normal. Insulin glargine is a long-acting insulin that works slowly over about 24 hours. You may have to use insulin glargine in combination with another type of insulin or with a type of oral diabetes medicine to keep your blood sugar under control.

This medicine is available only with your doctor's prescription, in the following dosage forms:

Parenteral
• Injection (U.S.)

Imatinib ( i-MAT-in-ib) is a new type of medication that prevents and stops the growth of cancer cells. It helps your body fight against a type of cancer called chronic myeloid leukemia (CML) or gastrointestinal stromal tumor (GIST). CML is a disease in which your body makes too many abnormal white blood cells which can cause you to become sick more often and also to feel weak or tired. Imatinib helps your body to stop making these abnormal white blood cells. GIST is a group of cancer cells that started growing in the wall of the stomach, intestines, or rectum. Imatinib helps your body to stop making these abnormal cells.

Before you begin treatment with imatinib, you and your doctor should talk about the good this medicine will do as well as the risks of using it.

This medicine is available only with your doctor's prescription, in the following dosage form:

Oral
• Capsules (U.S. and Canada)

Ibritumomab Tiuxetan (ib-ri-TU-moe-mab ) (tie-ux-EH-tan) is a protein called a monoclonal antibody. It is used along with another monoclonal antibody (rituximab) and two radioactive pharmaceuticals (In-111 and Y-90). Ibritumomab tiuxetan is used to treat a type of cancer called non-Hodgkin's lymphoma.

Ibritumomab Tiuxetan is to be administered only by or under the immediate supervision of your doctor. It is available in the following dosage form:

Parenteral
• Injection (U.S.)

Insulin glulisine (IN-soo-lin gloo-LIS-een) is a fast-acting type of human insulin. Insulin is used by people with sugar diabetes to help keep blood sugar levels under control. If you have sugar diabetes, your body cannot make enough or does not use insulin properly. So, you must take additional insulin to regulate your blood sugar and keep your body healthy. This is very important as too much sugar in your blood can be harmful to your health. Since insulin glulisine acts faster than regular human insulin, you normally should use insulin glulisine with a longer-acting insulin.

This medicine is available only with your doctor's prescription, in the following dosage forms:

Parenteral
• Injection (U.S.)