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Lower Respiratory Infection

Lower respiratory infections affect the lungs and airways, causing symptoms like cough, congestion, and difficulty breathing. They include pneumonia, bronchitis, and bronchiolitis. Viruses and bacteria are the common culprits. Treatment depends on the cause and severity, ranging from supportive care to antibiotics. Prevention involves good hygiene, vaccinations, and a healthy lifestyle. Seeking medical attention is crucial for persistent or worsening symptoms.

Best medications for Lower Respiratory Infection

Drug NameClassRouteStandard DosagePrice
AzactamMonobactam AntibioticsInjection2, 1 GMfrom$257.62
CleocinLincosamide AntibioticsOral150, 600, 900, 300, 1, 75, 9, 2, 100 MGfrom$9.59
Cleocin PhosphateLincosamide AntibioticsIntravenous600, 900, 9, 300 MG/6MLfrom$2.77
FlagylNitroimidazole AntibioticsOral500, 375 MGfrom$4.52
ClarithromycinMacrolide AntibioticsOral500, 250, 125 MGfrom$19.27
Moxifloxacin HClQuinolone AntibioticsOral400, 0.3, 0.16, 1, 5, 0.5 MGfrom$42.26
VibramycinTetracycline AntibioticsOral25, 50, 100 MGfrom$10.08
MorgidoxTetracycline AntibioticsOral1 x 50, 1 x 100, 50, 2 x 100, 100 MGfrom$10.08
ZithromaxMacrolide AntibioticsOral500, 250, 200, 600, 1, 100 GMfrom$14.56
CefprozilCephalosporin AntibioticsOral500, 250, 125 MG/5MLfrom$12.88


A lower respiratory infection is a type of infection that affects the lungs and the airways leading to them. It primarily affects the lower part of the respiratory system, which includes the bronchi, bronchioles, and alveoli. Lower respiratory infections can range from mild, self-limiting illnesses to severe and life-threatening conditions. They are commonly caused by viruses or bacteria and can result in symptoms such as cough, chest congestion, difficulty breathing, and fever.

Types of Lower Respiratory Infections

There are several types of lower respiratory infections, including: 1. Pneumonia: Pneumonia is an infection that inflames the air sacs in one or both lungs. It can be caused by bacteria, viruses, or fungi and may result in symptoms such as cough with phlegm, chest pain, rapid breathing, and fatigue. 2. Bronchitis: Bronchitis is the inflammation of the bronchial tubes, which carry air to and from the lungs. It is commonly caused by viruses and can lead to symptoms such as persistent cough, wheezing, and shortness of breath. 3. Bronchiolitis: Bronchiolitis is a common lower respiratory infection that primarily affects infants and young children. It occurs when the small airways in the lungs, called bronchioles, become infected and swollen. Symptoms include cough, rapid breathing, fever, and wheezing.


Lower respiratory infections are most often caused by viruses, such as influenza virus, respiratory syncytial virus (RSV), and rhinovirus. Bacterial infections, particularly Streptococcus pneumoniae and Haemophilus influenzae, can also lead to lower respiratory infections, especially pneumonia. In some cases, fungal infections or exposure to certain chemicals or pollutants can contribute to lower respiratory infections.


The treatment of lower respiratory infections will depend on the exact cause and severity of the infection. In cases of viral infections, supportive care is usually recommended, including rest, fluids, and over-the-counter medications to alleviate symptoms. Bacterial infections may require treatment with antibiotics to target and eliminate the bacteria causing the infection. It is important to complete the full course of antibiotics as prescribed by a healthcare professional to prevent antibiotic resistance. In severe cases, hospitalization and specialized medical care may be necessary.


Lower respiratory infections can be prevented by practicing good hygiene, such as washing hands frequently, avoiding close contact with individuals who are sick, and covering the mouth and nose when coughing or sneezing. Vaccinations, such as the influenza vaccine and pneumococcal vaccine, are also effective in preventing certain types of lower respiratory infections. Additionally, maintaining a healthy lifestyle, including regular exercise, proper nutrition, and avoiding smoking, can help strengthen the immune system and reduce the risk of developing respiratory infections.


Lower respiratory infections can range in severity and may be caused by viruses, bacteria, or fungi. It is essential to seek medical attention if symptoms persist or worsen, especially in vulnerable populations such as young children, older adults, and individuals with weakened immune systems. By practicing good hygiene and taking preventive measures, lower respiratory infections can be minimized, reducing the impact on individuals and the community as a whole.