Trimethoprim Side Effects by Likelihood and Severity

COMMON side effects


If experienced, these tend to have a Severe expression

  • Itching

If experienced, these tend to have a Less Severe expression

  • Rash

INFREQUENT side effects


If experienced, these tend to have a Less Severe expression

  • Feel Like Throwing Up
  • Sun-Sensitive Skin
  • Throwing Up

RARE side effects


If experienced, these tend to have a Severe expression

  • Decreased Blood Platelets
  • Decreased Neutrophils A Type Of White Blood Cell
  • Decreased White Blood Cells
  • Erythema Multiforme
  • Head Pain
  • High Amount Of Potassium In The Blood
  • Life Threatening Allergic Reaction
  • Low Amount Of Sodium In The Blood
  • Megaloblastic Anemia
  • Meningitis Not Caused By An Infection
  • Methemoglobinemia
  • Skin Rash With Sloughing
  • Stevens-Johnson Syndrome
  • Toxic Epidermal Necrolysis
  • Yellowing Of Skin Or Eyes From Bile Flow Problems

If experienced, these tend to have a Less Severe expression

  • Intense Abdominal Pain
  • Painful, Red Or Swollen Tongue

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CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.