Himox-B 500mg/8mg Tablet is a combination medicine that is prescribed to treat various types of respiratory infections. It treats the infection and prevents further infections by acting against the microorganisms. It also reduces the viscosity of the mucus (phlegm) for easy cough out. Himox-B 500mg/8mg Tablet is a prescription medicine. It is advised to take it as per the prescription. It can be taken with or without food, but it must be taken at a fixed time to ensure better efficacy. Do not consume more than the recommended dose, as this may have harmful effects on your body. If you miss a dose, take it as soon as you remember. The treatment must be completed even if you feel better. The common side effects of this medicine are nausea, vomiting, diarrhea, rashes, etc. If any of the side effects get aggravated, you must consult your doctor immediately. If you experience any allergic reactions like rashes, itching, swelling, shortness of breath, etc. then you must seek immediate medical help. Before taking this medicine, you should tell your doctor if you are taking any medicines for any health condition. Pregnant or breastfeeding women should also consult with their doctor before taking it. Avoid drinking alcohol as it can cause excessive drowsiness with this medicine. It usually does not impair your ability to drive, but you should not drive if it makes you feel sleepy or dizzy.