What is Bactrim 400/80mg?

Bactrim 400/80mg is an antibiotic used to treat infections caused by bacteria. It contains two active ingredients:

• Sulfamethoxazole (400mg) – Helps stop bacteria from growing.
• Trimethoprim (80mg) – Works with sulfamethoxazole to kill bacteria.

This combination makes Bactrim more effective than using either ingredient alone.

What is Bactrim Used For?

Doctors prescribe Bactrim to treat many bacterial infections, including:
Urinary tract infections (UTIs)
Respiratory infections (like bronchitis and pneumonia)
Skin infections (such as boils and abscesses)
Ear infections
Traveler’s diarrhea

It does not work against viruses, so it cannot treat the flu or common cold.

How to Take Bactrim 400/80mg

• Take the tablet with a glass of water.
• It is usually taken twice a day (every 12 hours).
• You can take it with or without food, but drinking plenty of water is important.
• Always follow the doctor’s instructions and finish the full course of medicine.

Possible Side Effects

Some people may experience side effects, such as:

• Nausea or vomiting
• Diarrhea
• Skin rash
• Headache
• Loss of appetite

Serious side effects are rare but may include allergic reactions (swelling, severe rash, or difficulty breathing). If this happens, seek medical help immediately.

Who Should Not Take Bactrim?

Bactrim may not be safe for everyone. Talk to your doctor if you:

• Are allergic to sulfa drugs
• Have kidney or liver disease
• Have a blood disorder (like anemia)
• Are pregnant or breastfeeding

Conclusion

Bactrim 400/80mg is a strong antibiotic use to fight bacterial infections. It is important to take it exactly as prescribed to ensure it works properly. If you have any concerns or side effects, talk to your doctor.