Inh how long to take

This medicine should be taken on an empty stomach, 1 hour before or 2 hours after a meal, with a full of glass of water. It is important to take this medicine on a regular schedule.

If this medicine upsets your stomach, take it with food. Antacids may also help. They may keep this medicine from working properly. To help clear up your tuberculosis TB infection completely, it is very important that you keep taking this medicine for the full time of treatment, even if you begin to feel better after a few weeks. It is important that you do not miss any doses.

Your doctor may also want you to take pyridoxine eg, Hexa-Betalin, vitamin B6 everyday to help prevent or lessen some of the side effects of isoniazid. If it is needed, it is very important to take pyridoxine everyday along with this medicine. Do not miss any doses. If you are taking itraconazole, do not use rifampin, isoniazid, and pyrazinamide combination 2 weeks before and during itraconazole treatment. The dose of this medicine will be different for different patients.

Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so.

The amount of medicine that you take depends on the strength of the medicine. Isoniazid is used to treat tuberculosis TB. TB is a bacterial infection which mostly affects the lungs, but which can affect any part of your body. It is treatable with a course of medicines which usually lasts for six months in total. You will need to take several medicines to treat TB - isoniazid is just one of the medicines prescribed.

Isoniazid is usually prescribed as a tablet which contains a combination of two, three or four medicines to treat TB. You may be prescribed one or more of these brands at different times in your treatment. Taking combination medicines like these helps to reduce the total number of tablets you need to take each day. Although isoniazid is a very effective medicine, it can sometimes cause damage to peripheral nerves such as numbness and tingling sensations in the hands and feet.

If you are considered to be at risk of this, your doctor will prescribe you a vitamin supplement of pyridoxine to prevent it.

Some medicines are not suitable for people with certain conditions, and sometimes a medicine may only be used if extra care is taken. For these reasons, before you start taking isoniazid it is important that your doctor knows:. Along with their useful effects, most medicines can cause unwanted side-effects although not everyone experiences them. The table below contains the most common ones associated with isoniazid.

You will find a full list in the manufacturer's information leaflet supplied with your medicine. Unwanted effects often improve as your body adjusts to a new medicine, but speak with your doctor or pharmacist if any become troublesome.

Important : isoniazid on rare occasions causes liver problems. The symptoms include persistent sickness nausea and vomiting , feeling very weak and yellowing of the skin and whites of the eyes jaundice. If this happens to you, speak with your doctor or go to your local accident and emergency department straightaway. There are several treatment regimens recommended in the United States for latent TB infection.

The medications used to treat latent TB infection include the following:. Short course regimens include:. Shorter, rifamycin-based treatment regimens generally have a lower risk of hepatotoxicity than 6H and 9H. If short-course treatment regimens are not a feasible or an available option, 6H and 9H are alternative, effective latent TB infection treatment regimens. Although effective, 6H and 9H have higher toxicity risk and lower treatment completion rates than most short-term treatment regimens.

All treatment must be modified if the patient is a contact of an individual with drug-resistant TB disease.