What is Isoniazid 300mg?

Isoniazid 300mg is a medicine used to treat and prevent tuberculosis (TB). Tuberculosis is a serious infection that affects the lungs and sometimes other parts of the body.

Doctors often prescribe isoniazid along with other TB medicines to make the treatment more effective.

How Does It Work?

Isoniazid works by killing the bacteria that cause tuberculosis. It stops the bacteria from growing and spreading in the body.

How to Take Isoniazid 300mg

• Take one tablet (300mg) once a day or as directed by your doctor.
• It is best to take it on an empty stomach (1 hour before or 2 hours after food).
• Do not skip doses, as this can make the TB bacteria resistant to the medicine.
• If you are taking it to prevent TB, treatment usually lasts 6 to 9 months.

Benefits of Isoniazid

Prevents TB infection – Helps stop TB from developing in people at risk.
Treats active TB – Works with other medicines to cure TB infections.
Safe when used correctly – Has been used for many years to fight TB.

Possible Side Effects

Like all medicines, isoniazid may cause some side effects. Common ones include:

• Nausea and vomiting
• Loss of appetite
• Tingling or numbness in hands and feet
• Liver problems (rare but serious)

Tip: Taking vitamin B6 (pyridoxine) with isoniazid can help prevent nerve problems.

Who Should Not Take It?

Isoniazid may not be suitable for everyone. Talk to a doctor if you:

• Have liver disease
• Drink a lot of alcohol
• Have nerve problems
• Are pregnant or breastfeeding (your doctor will decide if it’s safe for you)

Important Warnings

Avoid alcohol while taking isoniazid, as it can harm the liver.
Do regular liver tests if your doctor recommends them.
Tell your doctor about all other medicines you are taking to avoid interactions.

Conclusion

Isoniazid 300mg is a powerful medicine for treating and preventing tuberculosis. When taken correctly, it can help stop the spread of TB and save lives. Always follow your doctor’s instructions and report any side effects.