Phytocough

Side effects
Mild stimulatory effect on stomach mucus, increases the probability of spotting in women, in high doses, it increases gastrointestinal secretion, and due to its vitamin C content, it may cause nausea and vomiting and abdominal cramp, insomnia, accumulation in the joints due to gout (due to increased uric acid), diarrhea. There is a chance of formation of urate, oxalate and cysteine stones in individuals with the history of kidney stone.

When NOT to take it 
•    Use cautiously in severe digestive disorders. 
•    Contraindicated in individuals with a history of allergies to thyme and any other herbs or ingredients used in the product.
•    Patients who have gallstones should only take this medicine after consulting their physician.
•    People who are on a sodium-restricted diet or on anticoagulant therapy should not receive high levels of vitamin C for a long period of treatment.
•    Not to be taken by children under 2 years of age. 
•    People who smoke are in need of higher doses of vitamin C.
•    High intake of vitamin C increases the absorption of vitamin B12 by increasing the pH of the small intestine.

Thing you must do
•    Precipitation in herbal solution does not reduce its therapeutic effect. Shake bottle well before use.