Tridex B Syrup is a combination medicine used in the treatment of dry cough. It thins and loosens mucus in the nose, windpipe and lungs making it easier to cough out. It also narrows the small blood vessels and provides relief from congestion or stuffiness in the nose. Tridex B Syrup is taken with or without food in a dose and duration as advised by the doctor. The dose you are given will depend on your condition and how you respond to the medicine. You should keep taking this medicine for as long as your doctor recommends. If you stop treatment too early your symptoms may come back and your condition may worsen. Let your healthcare team know about all other medications you are taking as some may affect, or be affected by this medicine. The most common side effects are nausea, diarrhea, bloating, indigestion, headache, sweating, high blood pressure, insomnia, palpitations, skin rash, and stomach upset. Most of these are temporary and usually resolve with time. Contact your doctor straight away if you are at all concerned about any of these side effects. This medicine can also cause dizziness and sleepiness, so do not drive or do anything that requires mental focus until you know how this medicine affects you. Avoid drinking alcohol while taking this medicine as it can worsen your sleepiness. Never support self-medication or recommend your medicine to another person. Keep it out of reach of children. It is beneficial to have plenty of fluids while taking this medication. Before taking it, you should tell your doctor if you have liver diseases so that your doctor can prescribe a suitable dose for you. Pregnant or breastfeeding women should consult their doctor before taking this medicine.