Chat with us, powered by LiveChat

Buy Sulfamethoxazole/Trimethoprim

Buy Sulfamethoxazole/Trimethoprim (the generic equivalent for Bactrim)

PrescriptionPrescription Required
Formulation : Tablet

Drug Name Dosage Quantity Price Buy Now
Sulfamethoxazole/Trimethoprim 400/80mg 100 $35.00 Add To Cart
Dosage: 400/80mg
Quantity: 100
Price: $35.00

What is Bactrim used for?

Bactrim (sulfamethoxazole/trimethoprim or TMP/SMX) is an antibiotic drug that combines sulfamethoxazole and trimethoprim. It is indicated to treat several infections, including urinary tract, respiratory tract, and gastrointestinal tract.

This medication consists of two drugs that effectively work together to eliminate bacteria and prevent their growth. This medication also inhibits the formation of folic acid, which is essential for bacterial growth.

Sulfamethoxazole, a sulfonamide drug, works by inhibiting the multiplication of bacteria. However, trimethoprim is an antibiotic that kills bacteria that causes infection. As a result, it improves drugs’ effectiveness.

Bactrim Dosage 

The dosage and frequency of this medication differ from person to person, depending on your health condition, age, and tolerance. This drug is available in 400/80 mg per tablet. 

The suggested dose for children suffering from UTI, acute otitis media, and shigellosis is based on their weight and should be administered twice daily at 12-hour intervals for 5 to 10 days. 

The dose of Bactrim for ear infection, UTI, and chronic bronchitis is an 800/160 mg tablet twice daily for 10 to 14 days.  A similar dose is given in treating shigellosis and traveler’s diarrhea for five days. 

For immunocompromised adults with Pneumonia, 800/160 mg is given every six hours for 14 to 20 days; nevertheless, in terms of preventing impending infection, Bactrim should be administered once daily.

Best way to use Bactrim 

Read all drug instructions and information carefully before using Bactrim. Follow the directions on the leaflet or as directed by your doctor when taking the drug. If you have any questions about this drug, you should contact your doctor or pharmacist.

This drug should be taken orally, ideally with food or milk, to prevent stomach upset. Without chewing or crushing the tablet, consume the whole pill with a cup of water. You are encouraged to drink plenty of water as this medicine can cause the formation of kidney stones.

To avoid missing a dose, remember to take this medication regularly. Making a note on your calendar may assist you in remembering to take your medicine. If you forget to take this oral tablet, take it as soon as you remember. If your next dose is already due, skip the missed dose and resume your regular schedule.

Do not exceed your recommended dose unless otherwise directed by your doctor. Changing the medication’s dosage and frequency is not advised due to the increased risk of developing resistance to this treatment. Consult your doctor if you need to make any changes.

Bactrim Side Effects 

The most common sulfamethoxazole/trimethoprim side effects are as follows: 

  • Nausea and vomiting
  • Loss of appetite
  • Rash
  • Hives
  • Gas

If any of these side effects worsen over time or if you develop any of the following adverse events, contact your doctor right away: 

  • Muscle weakness
  • Kidney problems: changes in the amount of urine, presence of blood in the urine
  • Persistent headache
  • Seizure
  • Irregular heart rate
  • Trouble breathing
  • Severe diarrhea (bloody or watery)
  • Unbearable stomach pain
  • Yeast infection (mouth or genitals)
  • Low blood sugar symptoms: increased thirst, dry mouth, fruity breath odor
  • Low blood cells count: fever, cold-clammy skin, unusual bleeding, easy bruising 

This list does not include all of the drug’s health risks.

Bactrim and Alcohol 

It is discouraged to drink alcohol while taking antibiotics such as Bactrim. Aside from the fact that it is not safe, it can also increase the risk of developing adverse effects such as rapid heartbeat, stingy feeling, nausea, and vomiting. Furthermore, alcohol may reduce the efficiency of the medicine.


  • Ensure that you have fully disclosed your medical history to your doctor, especially if you have kidney disease, anemia, G6PD deficiency, or severe liver problems, as this can exacerbate your medical condition.
  • Do not use this medication if you are allergic to sulfamethoxazole, trimethoprim, or other components. Keep an eye out for any allergic reactions, such as skin rashes, hives, swelling of the face and lips, throat tightness, or difficulty breathing. You should seek medical attention as soon as these signs and symptoms emerge.
  • Use caution when going outside because this drug may make you more prone to sunburn. It is best to avoid direct sunlight and use protective clothing and sunscreen (SPF 30 or greater) when going out.
  • Tell your doctor about your medications and supplements, especially if using Dofelitide, as drug interactions can have negative health implications.
  • Do not abruptly discontinue the use of this drug without first consulting your doctor. Doing so may increase the chance of developing a new bacterial infection that is drug-resistant to this medication.
  • Keep this item out of children’s reach and keep it safe.

How much does Bactrim cost in Canada? 

Check out the top of this description to see how affordable our prices compare to other pharmacies.

Frequently Asked Questions 

Is it safe to take Bactrim when pregnant? 

Clinical trials have shown that Bactrim can cause birth abnormalities. Do not take this oral medication if you are pregnant.

What is the recommended age for using Bactrim? 

The safety and efficacy of this drug are not recommended for young individuals below two months of age.

How fast does Bactrim take to work? 

Results may vary depending on how your body responds to the medication. Follow your doctor’s instructions when taking Bactrim. Only your doctor can determine how long you should take this medicine.

Is Bactrim the best treatment for Urinary Tract Infections (UTIs)? 

Yes, Bactrim for UTIs is usually the treatment of choice.

How long does it take for Bactrim to work? 

It is dependent on how you react to the therapy. Symptoms are usually relieved within three days of beginning medication. 











Bactrim Generic Costs

Looking to save money on Bactrim medications? View Bactrim generic options here.

Can Drug Store has provided information from third parties intended to increase awareness and does not contain all the information about Bactrim (Sulfamethoxazole/Trimethoprim). Talk to your doctor or a qualified medical practitioner for medical attention, advice, or if you have any concerns about Bactrim (Sulfamethoxazole/Trimethoprim).

Shopping Cart
Scroll to Top