Piritexyl Syrup, Ammonium Chloride/ Dextromethorphan/ Menthol/ Phenylephrine

Phenylephrine is used in the treatment of nasal congestion, pupil dilation and low blood pressure that can occur during different type of anesthesia

Phenylephrine works by decreasing swelling in the blood vessels of the nose and ears, thus lessening discomfort and making it easier to breathe. Phenylephrine is also be used dilate the eyes prior to eye surgery.

Patients who take Phenylephrine may suffer from such side effects;

Nausea,
Vomiting,
Headache,
Palpitations,
Increased blood pressure,
Increased heart rate,
Irregular Heart beat

Dextromethorphan is used in the treatment of dry cough.

Dextromethorphan is known as a cough suppressant, Dextromethorphan works by affecting the signals in the brain that trigger cough reflex.

Some of the potential side effects of Dextromethorphan can include the symptoms below;

Sedation,
Sleepiness,
Weakness,
Dehydration,
Dizziness,
Lightheadedness,
Headache,
Sweating,
Anemia,
Fatigue,
Vomiting,
Nausea,
Edema,
Constipation,
Dry mouth.

Menthol is used in the treatment of itching, dermatitis and eczema.

Menthol works by activating the cold-sensitive TRPM8 receptors in the skin. Menthol, causes a feeling of coolness due to stimulation of cold receptors by inhibiting Ca++ currents of neuronal membranes. Menthol may also yield analgesic properties via kappa-opioid receptor agonism.

Some of the potential side effects of Menthol can include the symptoms below;

Balance disorder,
Vomiting,
Altered heart rate,
Drowsiness,
Hypersensitivity reaction,
Nausea,
Abdominal pain,
Contact dermatitis,
Skin irritation,
Apnea,
Nystagmus,
Vertigo

Ammonium Chloride is used in the treatment of cough with the presence of mucus.

Ammonium chloride works by decreasing the stickiness of airway mucus secretions and helps in their removal of the mucus from the airways.

Some of the potential side effects of Ammonium Chloride include the symptoms below;

Facial swelling,
Allergic reaction,
Sickness,
Nausea,
Stomach pain,
Shortness of breath,
Difficulty in swallowing,
Throat disorder