The combination of fexofenadine and pseudoephedrine is used to relieve hay fever and allergy symptoms, including runny nose; sneezing; stuffy nose; itchy throat; and red, itchy, tearing eyes. Fexofenadine is in a class of medications called antihistamines. It works by blocking histamine, a substance in the body that causes allergic symptoms. Pseudoephedrine is in a class of medications called decongestants. It works by drying up the nasal passages.

Flurandrenolide is used to treat the itching, redness, dryness, crusting, scaling, inflammation, and discomfort of various skin conditions.

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

Fluticasone, a corticosteroid, is used to reduce inflammation and relieve itching, redness, dryness, and scaling associated with various skin disorders.

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

Fentanyl skin patches are used to relieve chronic pain associated with cancer and other diseases.

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

Fosamprenavir is used with other medications to treat human immunodeficiency virus (HIV) infection in patients with or without acquired immunodeficiency syndrome (AIDS). Fosamprenavir is in a class of medications called protease inhibitors. It works by slowing the spread of HIV in the body. Fosamprenavir does not cure HIV infection and may not prevent you from developing HIV-related illnesses. Fosamprenavir does not prevent you from spreading HIV to other people.

Fenoprofen is used to relieve the pain, tenderness, inflammation (swelling), and stiffness caused by arthritis. It is also used to relieve other pain, including pain after surgery or childbirth.

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

Flurazepam is used on a short-term basis to help you fall asleep and stay asleep through the night.

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

Fluocinolone is used to treat the itching, redness, dryness, crusting, scaling, inflammation, and discomfort of various skin conditions.

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

Fludrocortisone, a corticosteroid, is used to help control the amount of sodium and fluids in your body. It is used to treat Addison's disease and syndromes where excessive amounts of sodium are lost in the urine. It works by decreasing the amount of sodium that is lost (excreted) in your urine.

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

Fluoxymesterone, an androgenic hormone, is similar to the male hormone testosterone. It is prescribed for males when this hormone is absent or low or to treat delayed onset of puberty in males. It is also used in females with certain kinds of breast cancer.

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

Ferrous sulfate provides the iron needed by the body to produce red blood cells. It is used to treat or prevent iron-deficiency anemia, a condition that occurs when the body has too few red blood cells because of pregnancy, poor diet, excess bleeding, or other medical problems.

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

Flunisolide, a corticosteroid, is used to prevent allergy symptoms including sneezing, itching, and runny or stuffed nose.

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

Prescription famotidine is used to to treat ulcers (sores on the lining of the stomach or small intestine); gastroesophageal reflux disease [GERD, a condition in which backward flow of acid from the stomach causes heartburn and injury of the esophagus (tube that connects the mouth and stomach)]; and conditions where the stomach produces too much acid, such as Zollinger-Ellison syndrome (tumors in the pancreas or small intestine that cause increased production of stomach acid). Over-the-counter famotidine is used to prevent and treat heartburn due to acid indigestion and sour stomach caused by eating or drinking certain foods or drinks. Famotidine is in a class of medications called H

Fluoxetine (Prozac) is used to treat depression, obsessive-compulsive disorder (bothersome thoughts that won't go away and the need to perform certain actions over and over), some eating disorders, and panic attacks (sudden, unexpected attacks of extreme fear and worry about these attacks). Fluoxetine (Sarafem) is used to relieve the symptoms of premenstrual dysphoric disorder, including mood swings, irritability, bloating, and breast tenderness. Fluoxetine is in a class of medications called selective serotonin reuptake inhibitors (SSRIs). It works by increasing the amount of serotonin, a natural substance in the brain that helps maintain mental balance.

Fosinopril is used alone or in combination with other medications to treat high blood pressure. It is also used in combination with other medications to treat heart failure. Fosinopril is in a class of medications called angiotensin-converting enzyme (ACE) inhibitors. It works by decreasing certain chemicals that tighten the blood vessels, so blood flows more smoothly and the heart can pump blood more efficiently.

Fluvastatin is used with diet changes (restriction of cholesterol and fat intake) to reduce the amount of cholesterol and certain fatty substances in the blood. Fluvastatin is in a class of medications called HMG-CoA reductase inhibitors (statins). It works by slowing the production of cholesterol in the body. Accumulation of cholesterol and fats along the walls of the arteries (a process known as atherosclerosis) decreases blood flow and, therefore, the oxygen supply to the heart, brain, and other parts of the body. Lowering blood levels of cholesterol and fats may help to prevent heart disease, angina (chest pain), strokes, and heart attacks.

Fluticasone nasal spray is used to treat the symptoms of seasonal (occurs only at certain times of year), and perennial (occurs all year round) allergic rhinitis and perennial nonallergic rhinitis. These symptoms include sneezing and stuffy, runny, or itchy nose. Fluticasone is in a class of medications called corticosteroids. It works by preventing and decreasing inflammation (swelling that can cause other symptoms) in the nose.

Fosfomycin is an antibiotic used to treat infections of the urinary tract.

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

The combination of fluticasone and salmeterol is used to prevent wheezing, shortness of breath, and breathing difficulties caused by asthma. Fluticasone is in a class of medications called steroids. It works by reducing swelling in the airways. Salmeterol is in a class of medications called long-acting beta-agonists. It works by relaxing and opening air passages in the lungs, making it easier to breathe.

Flavoxate (fla-VOX-ate) belongs to the group of medicines called antispasmodics. It is taken by mouth to help decrease muscle spasms of the bladder and relieve difficult urination.

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

Oral
• Tablets (U.S. and Canada)

Floxuridine ( flox-YOOR-i-deen) belongs to the group of medicines known as antimetabolites. It is used to treat some kinds of cancer.

Floxuridine interferes with the growth of cancer cells, which are eventually destroyed. Since the growth of normal body cells may also be affected by floxuridine, 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 floxuridine, you and your doctor should talk about the good this medicine will do as well as the risks of using it.

Floxuridine 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.)

Fludrocortisone ( floo-droe-KOR-tis-sone) is a corticosteroid (kor-ti-koe-STE-roid) (cortisone-like medicine). It belongs to the family of medicines called steroids. Your body naturally produces similar corticosteroids, which are necessary to maintain the balance of certain minerals and water for good health. If your body does not produce enough corticosteroids, your doctor may have prescribed this medicine to help make up the difference.

Fludrocortisone may also be used to treat other medical conditions as determined by your doctor.

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

Oral
• Tablets (U.S. and Canada)

Fluorouracil (flure-oh-YOOR-a-sill) belongs to the group of medicines known as antimetabolites. When applied to the skin, it is used to treat certain skin problems, including cancer or conditions that could become cancerous if not treated.

Fluorouracil interferes with the growth of abnormal cells, which are eventually destroyed.

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

Topical
• Cream (U.S. and Canada)
• Topical solution (U.S. and Canada)

Vitamins (VYE-ta-mins) are compounds that you must have for growth and health. They are needed in small amounts only and are usually available in the foods that you eat. Folic acid (FOE-lik AS-id) (vitamin B ₉) is necessary for strong blood.

Lack of folic acid may lead to anemia (weak blood). Your health care professional may treat this by prescribing folic acid for you.

Some conditions may increase your need for folic acid. These include:

• Alcoholism
• Anemia, hemolytic
• Diarrhea (continuing)
• Fever (prolonged)
• Hemodialysis
• Illness (prolonged)
• Intestinal diseases
• Liver disease
• Stress (continuing)
• Surgical removal of stomach

In addition, infants smaller than normal, breast-fed infants, or those receiving unfortified formulas (such as evaporated milk or goat's milk) may need additional folic acid.

Increased need for folic acid should be determined by your health care professional.

Some studies have found that folic acid taken by women before they become pregnant and during early pregnancy may reduce the chances of certain birth defects (neural tube defects).

Claims that folic acid and other B vitamins are effective for preventing mental problems have not been proven. Many of these treatments involve large and expensive amounts of vitamins.

Injectable folic acid is given by or under the direction of your health care professional. Another form of folic acid is available without a prescription.

Folic acid is available in the following dosage forms:

Oral
• Tablets (U.S. and Canada)

Parenteral
• Injection (U.S. and Canada)

Importance of DietFentanyl acts in the central nervous system (CNS) to relieve pain. Some of its side effects are also caused by actions in the CNS. When a narcotic is used for a long time, it may become habit-forming (causing mental or physical dependence). However, people who have continuing pain should not let the fear of dependence keep them from using narcotics to relieve their pain. Mental dependence (addiction) is not likely to occur when narcotics are used for this purpose. Physical dependence may lead to withdrawal side effects if treatment is stopped suddenly. However, severe withdrawal side effects can usually be prevented by reducing the dose gradually over a period of time before treatment is stopped completely. Your health care professional will take this into consideration when deciding on the amount of transmucosal fentanyl you should receive.

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

Oral
• Transmucosal (U.S.)

Factor VIIa is a man-made protein produced to replicate the naturally occurring activated factor VII (factor VIIa) in the body. Factor VIIa is used to stop bleeding of injuries for patients with hemophilia by helping the blood to clot. This man-made protein, factor VIIa, is used in people who have Hemophilia A or Hemophilia B, who have also formed antibodies against other clotting proteins that help bleeding to stop. Patients using factor VIIa are usually male.

Factor VIIa is to be administered only by or under the supervision of your doctor or other health care professional. It is available in the following dosage form(s):

Parenteral
• Injection (U.S.)

Framycetin ( Fram-E-see-tin)

belongs to the family of medicines called antibiotics. Framycetin ophthalmic preparations are used to treat infections of the eye.

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

Ophthalmic
• Ophthalmic ointment (Canada)
• Ophthalmic solution (eye drops) (Canada)

Formoterol (for-MOE-tur-all ) belongs to the family of medicines known as ß ₂-agonists. It is used to help prevent the symptoms of asthma. When used regularly every day, inhaled formoterol decreases the number and severity of asthma attacks. However, it will not relieve an asthma attack that has already started.

Inhaled formoterol works by preventing certain cells in the lungs and breathing passages from releasing substances that cause asthma symptoms.

This medicine should be taken with other asthma medicines known as corticosteroids

Formoterol is also used for patients with COPD (Chronic Obstructive Pulmonary Disease). These are diseases such as chronic bronchitis and emphysema.

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

Inhalation
• Capsule for inhalation (U.S. and Canada)

fondaparinux ( fon-da-PA-rin-ux) is used to prevent deep vein thrombosis, a condition in which harmful blood clots form in the blood vessels of the legs. These blood clots can travel to the lungs and can become lodged in the blood vessels of the lungs, causing a condition called pulmonary embolism. This medicine is used for several days after hip fracture surgery, hip replacement surgery or knee replacement surgery. Blood clots are more likely to form after surgery when you are unable to walk. Fondaparinux also may be used for other conditions as determined by your doctor.

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

Parenteral
• Injection (U.S.)