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Trimethoprim
What Is Trimethoprim?
Trimethoprim is an antibiotic medication used to treat a variety of bacterial infections. It’s most commonly used against urinary tract infections, although it can also be used to treat other bacterial infections such as outer ear infections and some types of diarrhea.
Trimethoprim works by stopping the growth of bacteria by inhibiting an enzyme that bacteria need to produce DNA. Which stops the bacteria from multiplying.
It is often combined with other drugs like an antibiotic called sulfamethoxazole. Together, they form the combination drug known as co-trimoxazole (brand names include Bactrim and Septra). This combination helps broaden the spectrum of bacterial targets and can help prevent bacterial resistance.
What Is Trimethoprim Used For?
Trimethoprim is typically prescribed for treating bacterial infections. This antibiotic won’t work on viral infections such as a cold or flu.
Primarily it’s used to treat urinary tract infections (UTIs) that are caused by bacteria but it can also be prescribed for other bacteria.
Common uses:
- Urinary tract infections
- Ear infections (Otitis Media)
- Sinus infections
- Respiratory tract infections (bronchitis, pneumonia)
- Gastrointestinal tract infections (traveler’s diarrhea)
- Skin and soft tissue infections
In some cases, trimethoprim (when combined with sulfamethoxazole) can be used to prevent certain types of pneumocystis pneumonia in people with weakened immune systems (such as people with HIV/AIDS).
What Are the Side Effects of Trimethoprim?
The most common side effects of Trimethoprim include:
- Nausea
- Vomiting
- Diarrhea
- Skin rash
- Loss of appetite
- Changes in taste
- Sun sensitivity
- Itchiness
- Muscle or joint pain
More serious side effects may include:
- Blood disorders
- Liver problems
- Kidney issues
- Allergic reactions
- Serious skin reactions
- Hyperkalemia Kidney
The above list of possible side effects from Trimethoprim is not exhaustive. If you experience any unusual or severe side effects while taking the antibiotic seek immediate medical attention.
Also if you have any concerns about potential interactions with other medications you are taking, contact your doctor for further information.
How to Take Trimethoprim?
When taking Trimethoprim, it is essential to follow precisely the instructions of your doctor. This includes the dosage, how long it needs to be taken, the frequency, and any other instructions.
The dosage is tailored based on individual medical conditions, age, and, in children, weight considerations.
Take the medication as prescribed and do not stop taking it until advised by your doctor even if you feel better or your symptoms disappear. Stopping the antibiotic course early may result in a return of the infection.
Frequently Asked Questions About Trimethoprim
Is Trimethoprim Safe?
Yes, trimethoprim is generally considered safe when used as directed and prescribed by a healthcare provider. However, it can have some side effects so it is important to follow the instructions closely and seek medical attention if you experience any serious side effects.
What to Avoid While Taking Trimethoprim?
While taking trimethoprim, it is important to avoid drinking alcohol as it may cause the drug to be less effective and enhance certain side effects such as dizziness or an upset stomach. It is also important to let your doctor know of any other medications you are taking (including prescription medication, OTC medication, and even supplements) as some drugs can interact with trimethoprim and cause serious side effects.
Can You Get Trimethoprim Over-the-Counter?
No, trimethoprim is a prescription antibiotic and it is not available over-the-counter (OTC). To get Trimethoprim you will first need to obtain a prescription from a licensed healthcare provider.
Are There Any Circumstances Where an Online Prescription for Trimethoprim May Not Be Provided?
Yes, there are a few situations where an online prescription for Trimethoprim may not be provided. These include if the healthcare provider feels that it is medically inappropriate to do so, or if you have certain medical conditions which require further investigation or tests before any medication can be prescribed. In these cases, the healthcare provider will provide appropriate advice and guidance on what to do next.
For more detailed information about trimethoprim, you can refer to the following sources:
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