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Proloprim is an oral pill consisting of an antibiotic drug called trimethoprim. We carry the generic alternative of this medication in 100mg and 200mg!

Proloprim is used to treat bacterial infections, most commonly for bladder, kidney, or ear infections caused by bacteria, but can be used for other bacterial infections as well. Bacterial infections are caused by bacteria, a relatively complex, single-celled creature. They often have a rigid wall and a thin, rubbery membrane surrounding the fluid inside the cell and are capable of reproducing on their own. Bacteria can live in a variety of environments, such as extreme heat and cold, radioactive waste, and the human body. Bacterial infections may cause short-lived infections (such as food poisoning), chronic infections that last weeks, months, or a lifetime (such as chronic gastritis), and latent infections, which may not show symptoms at first but may later on in life (such as latent tuberculosis). The symptoms of bacterial infections may vary depending on the location of the infection and the type; however, some general symptoms of bacterial infections include headache, pain, fever, nausea or vomiting, confusion, or sensitivity to light.

Proloprim (trimethoprim) is effective at treating bacterial infections because it is capable of stopping the growth of bacteria so the immune system can heal the infection more quickly and easier.

Only take this medication the way that your doctor has directed you too. Taking the incorrect dose can lead to unwanted side effects, ineffectiveness, or adverse interactions. Your dosage will be based on your medical condition and response to treatment, children doses are also based off weight. Do not stop taking this medication until the full prescribed amount has ran out.

Take Proloprim by mouth with or without food once or twice a day. For best effect, take the medication at evenly spaced intervals (e.g. every 12 hours)

This medication should be protected from heat, moisture, and light to avoid nullifying the medication.


Do not use Proloprim (trimethoprim)

Do not use Proloprim if you are allergic to trimethoprim or if you have low red blood cells caused by a folic acid deficiency.

Do not use this medication on anyone under the age of 2 months old.

Proloprim should not be used to treat an ear infection in those under the age of 6 months old.

Dose adjustment or special precautions may be required

To make sure this medication is safe for you, tell your doctor if you have ever had a folate deficiency, liver or kidney disease, or a blood disorder.


Tell your doctor if you are pregnant before taking this medication. Proloprim can interfere with your ability to metabolize folic acid, a type of vitamin crucial in the development of a babys brain and spinal cord.

Speak with your doctor before breast feeding if you are taking Proloprim. It may not be safe for the baby.

This medication will not help treat a viral or fungal infection. If you have a fungal or viral infection, speak with your doctor about an alternative medication.

Side Effects

Common side effects of Proloprim (trimethoprim) may include:

vomiting, diarrhea, stomach pain; rash, itching; or swelling in your tongue.

The above side effects should not alarm you.

Serious side effects of Proloprim (trimethoprim) may include:

severe stomach pain, diarrhea that is watery or bloody (even if it occurs months after your last dose); pale, gray, or bluish skin; fever, weakness; sore or swollen tongue; or easy bruising, purple or red spots under your skin.

If you have any of the above side effects, contact your doctor right away.

Please note this is not a complete list of side effects. Not everyone experiences side effects; they are not guaranteed. If you do have side effects and they become unmanageable, consult your doctor about alternate medications.

Contact your doctor if you notice signs of…

high potassium: nausea, weakness, tingly feeling, chest pain, irregular heartbeats, loss of movement.


What is the average dose for an adult with a urinary tract infection?

The average dose for an adult with a urinary tract infection should take 100mg every 12 hours for 10 days or 200mg every 24 hours for 10 days.

What should I avoid throughout the duration of treatment with Proloprim?

Avoid sharing this medication with other people, even if they have the same condition as you. They may have underlying conditions that make it unsafe for them to take the same dose that you may be taking.

What happens if I overdose?

Contact emergency services right away. An overdose may occur slowly over time with high doses of this drug. Overdose symptoms may include nausea, vomiting, headache, dizziness, confusion, depression, fever, chills, or flu-like symptoms.

What else should I know about this drug?

Proloprim may cause ineffective results in certain medical tests. Before having any kind of medical test done, ensure you tell the health care provider exactly which medications you are taking.

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