Note: This document contains side effect information about trimethoprim. Some of the dosage forms listed on this page may not apply to the brand name Primsol.
Applies to trimethoprim: oral solution, oral tablet
Along with its needed effects, trimethoprim (the active ingredient contained in Primsol) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor immediately if any of the following side effects occur while taking trimethoprim:
Some side effects of trimethoprim may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
Applies to trimethoprim: compounding powder, oral solution, oral tablet
Common (1% to 10%): Rash (e.g., maculopapular, morbilliform, pruritic), pruritus
Rare (less than 0.1%): Photosensitivity, angioedema, erythema multiforme, Stevens Johnson syndrome, toxic epidermal necrolysis (Lyell Syndrome
Frequency not reported: Exfoliative dermatitis, urticaria
Common (1% to 10%): Epigastric distress, nausea, vomiting, glossitis, abdominal pain, sore mouth
Frequency not reported: Pseudomembranous colitis, Clostridium difficile associated diarrhea
Frequency not reported: Thrombocytopenia, leukopenia, neutropenia, megaloblastic anemia, methemoglobinemia
Rare (less than 0.1%): Cholestatic jaundice
Frequency not reported: ALT and AST elevations, elevated bilirubin
Rare (less than 0.1%): Anaphylaxis
Frequency not reported: Hyperkalemia, hyponatremia
Frequency not reported: Myalgia
Rare (less than 0.1%): Aseptic meningitis, headache
Frequency not reported: Fever
Frequency not reported: Increased BUN, increased serum creatinine
Medically reviewed by BestRx Medical Team Last updated on 1/1/2020.
Source: Drugs.com Primsol