Why TB Medicine Must Be Taken to the End
November 5, 2026 · 2 min read
TB can be prevented and cured. The key is taking the medicine every day until the course is finished, because stopping halfway can make the germs resistant.
Tuberculosis, or TB, is still one of the deadliest infectious diseases in the world. According to WHO, 10.7 million people fell ill with TB in 2024, and 1.23 million died. The good news is that WHO is clear: TB can be prevented and cured.
How TB spreads
TB is caused by bacteria that most often attack the lungs. It spreads through the air when people with TB cough, sneeze, or spit. WHO estimates that about a quarter of the world's population has been infected with TB germs, but most are not ill and do not pass it on. Only about 5 to 10 percent go on to develop TB disease.
Symptoms to watch for
- A long lasting cough, sometimes with blood.
- Chest pain.
- Weakness and tiredness.
- Weight loss.
- Fever and night sweats.
Some people with TB have no symptoms at all but can still pass it on. If you live with someone who has TB, ask a health worker whether you should be checked.
The treatment
TB is treated with several antibiotics together, usually rifampicin, isoniazid, pyrazinamide, and ethambutol. WHO says they must be taken every day for 4 to 6 months.
After a few weeks on treatment, many people already feel much better. That is when the temptation to stop appears. But the germs may not be gone yet.
The danger of stopping halfway
WHO warns that stopping treatment too early, or without medical advice, is dangerous because it can make TB bacteria resistant to the medicines. Drug resistant TB can still be treated, but with other medicines that are usually more expensive and have more side effects.
Ways not to forget your medicine
- Take it at the same time every day.
- Ask a family member to remind you or be with you when you take it.
- Keep a record of every dose taken.
- Go to your check ups on time, and collect more medicine before you run out.
- If a side effect bothers you, do not stop on your own. Tell the doctor or health worker looking after you.
A Coapotek pharmacist can help explain how to take TB medicine and what to watch for during treatment.
Sources
- World Health Organization. Tuberculosis, fact sheet, 24 March 2026.