Ambroxol 
Uses
Ambroxol is used in the treatment of allergic disorders and the symptoms it can cause
How it Works
Ambroxol is used known as an antihistamine, it works by blocking histamine receptors and increasing the breakdown of mucus.Ambroxol works by selectively inhibiting the H1 histamine receptors therefore preventing histamine from acting on its receptors Ambroxol helps to alleviate the symptoms caused by hay fever or other allergies (such as a runny nose and watery eyes). Ambroxol has secretolytic properties, and it works by reducing the viscosity (thickness) of mucus, allowing for more of it to be removed from the body.
Common Side effects
Patients who take Ambroxol may suffer from such side effects;
Headache
Digestive upset
Dry feeling inside the mouth
Discomfort affecting the throat
Feelings of fatigue or somnolence
Constipation,
Diarrhoea,
Difficulty in urination,
Heartburn,
Itching,
Nausea,
Rash
Terbutaline
Uses
Terbutaline is used in the treatment of asthma, bronchospasm, emphysema and chronic obstructive pulmonary disorder (copd).
How it Works
Terbutaline is known as a bronchodilator. Terbutaline works by relaxing muscles in the airways to improve airflow into the lungs and improve breathing.
Common Side effects
Some of the potential side effects of Terbutaline can include the symptoms below;
Cough,
Respiratory tract inflammation,
Musculoskeletal pain,
Headache,
Excessive sweating,
Respiratory tract infection,
Throat irritation
Guaifenesin
Uses
Guaifenesin is used in the treatment of chest congestion caused by the common cold, infections, or allergies.
How it Works
Guaifenesin is known as an expectorant. Guaifenesin helps loosen congestion in the chest and throat, making it easier to cough out through the mouth. Guaifenesin in short decreases the stickiness of airway secretions and helps in their removal from the airways.
Common Side effects
Some of the potential side effects of Guaifenesin can include the symptoms below;
Nausea,
Itchy rash,
Diarrhea,
Dizziness,
Headache,
Hives,
Nausea or vomiting,
Skin rash,
Hypersensitivity reaction,
Stomach pain,
Vomiting