eMedTV Health Topics A-Z

Rabies

Rabies is a serious disease that is usually transmitted through the bites of infected animals. This eMedTV channel features articles on the symptoms, diagnosis, and treatment of rabies -- as well as which types of animals are most likely to spread it.

Rabies

Rabies, a viral disease affecting the nervous system, is most commonly transmitted through an animal bite. This eMedTV article discusses the transmission, treatment, and diagnosis of rabies, and explains which animals are most likely to have rabies.

Rabies Vaccine

In most cases, the rabies vaccine is given after a person has been exposed to rabies. As discussed in this eMedTV article, when the vaccine is administered before the onset of symptoms, it is extremely effective.

Rabies Virus

The rabies virus is an RNA virus that attacks the nervous system in mammals, including humans. This eMedTV page describes how the virus is transmitted (usually by an animal bite) and explains how rabies may cause serious symptoms and even death.

Radon

Radon is a radioactive gas that usually exists at low levels outdoors. This eMedTV article discusses the increased risk of lung cancer that is associated with long-term exposure to high levels of radon, especially when combined with cigarette smoke.

Ragweed Allergies

Many different plants in the ragweed family cause allergies. This eMedTV resource covers ragweed allergies in detail, providing information on when pollen levels are at their highest and ways to lower your exposure to pollen.

Raloxifene

Raloxifene is prescribed to treat postmenopausal women for osteoporosis. As this eMedTV article explains, it can also help reduce their risk of breast cancer. The drug's effects, dosing guidelines, and side effects are also described in detail.

Raltegravir

Raltegravir is only approved for use with other medications to treat HIV infection and AIDS. This eMedTV page offers information on the effects of this prescription drug, tips on when and how to take it, and potential side effects.

Ramelteon

Ramelteon is prescribed to treat insomnia in people who have trouble falling asleep. This eMedTV article provides important information on this drug, including its effects, dosing guidelines, possible side effects, and more.

Ramipril

Ramipril is mainly used for the treatment of high blood pressure and congestive heart failure. This part of the eMedTV Web site covers the effects of ramipril, possible side effects, and dosing information.

Ramsay Hunt Syndrome

Ramsay Hunt syndrome is a common complication of shingles. As this eMedTV article explains, it is characterized by intense ear pain and paralysis of facial nerves. This article provides an overview of this condition.

Ramsay Hunt Syndrome I

Ramsay Hunt syndrome I used to be the name for a collection of rare, degenerative neurological disorders. This eMedTV article talks about Ramsay Hunt syndrome I and explains that it is now called dyssynergia cerebellaris myoclonica.

Ranibizumab

Ranibizumab is a drug that is prescribed to treat age-related wet macular degeneration. This eMedTV segment describes how the medication works, explains when and how it is administered, and lists possible side effects that may occur.

Ranitidine

Ranitidine is a drug that may be used to treat heartburn, ulcers, GERD, and other conditions. This eMedTV Web page covers both over-the-counter and prescription forms of ranitidine, including details about how they reduce acid in the stomach.

Rapaflo

Rapaflo is a prescription medicine approved for relieving the symptoms of an enlarged prostate. This page on the eMedTV Web site describes how the drug works, explains when and how to take it, and lists some of its potential side effects.

Rasagiline

Rasagiline is a medication often prescribed for the treatment of Parkinson's disease. This eMedTV Web page describes rasagiline in more detail, explains how it works, and offers information on when and how to take the medication safely.

Rasmussen's Encephalitis

Rasmussen's encephalitis is a rare disease that usually affects only one hemisphere of the brain. As this eMedTV article explains, it occurs mainly in children under the age of 10. This page discusses Rasmussen's encephalitis in detail.

Raynaud's Disease

Raynaud's disease involves a lack of blood supply to the extremities. As this eMedTV article explains, this can result in numbness, tingling, and other symptoms. This page takes a closer look at the causes, symptoms, and treatment of this condition.

Raynaud's Phenomenon

This eMedTV page describes Raynaud's phenomenon, a condition affecting small blood vessels in the fingers, toes, nose, and ears, often triggered by exposure to cold. This page also explains symptoms and treatment options associated with the condition.

Razadyne

Razadyne is a prescription drug that is approved for treating mild to moderate Alzheimer's disease. This eMedTV page describes the various forms of the drug, explains how it works, and lists possible side effects that may occur with treatment.