Primsol

(trimethoprim)

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Treats bacterial infections.

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Our bottom line

Primsol (trimethoprim) is good for ear infections and urinary tract infections, but you might have more side effects compared to other available antibiotics.

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    $167.26
Quick facts about trimethoprim
  • Drug class: Infection
  • Rx status: Prescription only
  • Generic status: Lower-cost generic available (trimethoprim)

Upsides

  • Primsol (trimethoprim) is available in generic.
  • It’s available in liquid and pill form, so it might be better for people who can't swallow pills.
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What to expect from trimethoprim, on one page

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Downsides

  • Primsol (trimethoprim) makes skin more sensitive to the sun, so sunburns are more likely.
  • Primsol (trimethoprim) can cause serious side effects for people with low folic acid and some types of anemia.
  • Primsol (trimethoprim) might cause more side effects for people age 65 and older.
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What to expect from trimethoprim, on one page

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How it works

Primsol (trimethoprim) is an antibiotic. It kills bacteria by preventing them from making proteins and other chemicals they need to survive.

Quick facts about trimethoprim
  • Drug class: Infection
  • Rx status: Prescription only
  • Generic status: Lower-cost generic available (trimethoprim)

Dosage forms

  • Pill
  • Liquid
Tried trimethoprim? Write a review!

Prices and coupons

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What to expect when you take Primsol (trimethoprim) for Bacterial infection

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  • Effectiveness
  • Starts to kick in
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  • Possible side effects
  • Rash and itchy skin
  • Sunburn
  • Diarrhea
  • Nausea and vomiting
  • Allergic reaction
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Side effect rates for Primsol (trimethoprim)

Risks and Warnings for Primsol (trimethoprim)

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    • Higher risk if:
    • Allergies to antibiotics

    Although rare, Primsol (trimethoprim) can cause severe and life-threatening allergic reactions. Tell your doctor if you have any allergies to antibiotics. If you get a rash, itchy skin, hives, difficulty breathing, swelling of your face or mouth, fever or chills while taking Primsol (trimethoprim), talk to your doctor or go to the emergency room right away.

Common concerns from people taking Primsol (trimethoprim)

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Food
  • You can take Primsol (trimethoprim) with or without food. However, if you get an upset stomach while taking Primsol (trimethoprim), take it with milk or food.