Influenza, commonly known as the flu, refers to a viral infection that affects the respiratory system. According to the University of Maryland Medical Center 35,000 people die of influenza each year. Its signs and symptoms include fatigue, a dry cough, chills and a sore throat. Fortunately, drugs for treating influenza exist to decrease these symptoms.
Oseltamivir
Oseltamivir, commonly sold as Tamiflu, is an antiviral medication that eliminates the influenza A and B virus. Oseltamivir can also be given to people who were exposed to the influenza virus, according to Drugs.com. Oseltamivir's less concerning side effects include a headache, vomiting, diarrhea and a cough. Its serious side effects include an allergic reaction. Signs of an allergic reaction include difficulty breathing, hives and swelling of the tongue, face or throat. Go to the emergency room when oseltamivir leads to these effects. Oseltamivir is a capsule taken twice a day for five days.
Zanamivir
Zanamivir, commonly sold as Relenza, is another antiviral medication that halts the influenza viruses from multiplying in the body. Zanamivr treats flu symptoms that have lasted for at least two days, according to Drugs.com. Zanamivir's less concerning side effects include a cough, respiratory symptoms, vomiting, diarrhea and dizziness. Its serious side effects include confusion and delirium. Sometimes, zanamivir can lead to an allergic reaction. Signs of an allergic reaction include swelling of the face, tongue or throat, hives and difficulty breathing. Go to the emergency room when zanamivir leads to these effects. Avoid taking zanamivir when suffering with such diseases as chronic obstructive pulmonary disorder or asthma. This can lead to bronchospasm, a condition in which breathing becomes very difficult. Zanamavir is available as an inhaler and two inhalations are taken every 24 hours for five days.
Amantadine
Amantadine, commonly sold as Symmetrel, is a medication specifically used to treat the influenza A virus. According to MedlinePlus amantadine also treats Parkinson's disease. Its less concerning side effects include dizziness, lightheadedness, trouble sleeping, blurry vision and dizziness. Some of amantadine's serious side effects include depression, anxiety, shortness of breath and a rash. Phone a doctor when amantadine leads to these effects. Suffering from such diseases as seizures, liver disease or heart failure may require a decrease in amantadine's dose. This medication is a capsule or liquid taken once or twice daily.
