Sulfamethoxazole Side Effects

Please note - some side effects for Sulfamethoxazole may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA at http://www.fda.gov/medwatch/ or 1-800-FDA-1088 (1-800-332-1088).

Side Effects of Sulfamethoxazole - for the consumer

Sulfamethoxazole/Trimethoprim

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Sulfamethoxazole/Trimethoprim:

Appetite loss; nausea; vomiting.

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); blistered, peeling, red, or swollen skin; bloody or black, tarry stools; chest pain; chills, fever, or sore throat; decreased urination; depression; hallucinations; joint or muscle pain; pain, redness, or swelling at the injection site; painful or stiff neck; purple patches under the skin; seizures; severe diarrhea; severe or persistent cough; severe or persistent headache; severe or persistent nausea or vomiting; shortness of breath; stomach cramps/pain; unusual bruising or bleeding; unusual tiredness or weakness; unusually pale skin; vaginal irritation or discharge; yellowing of the skin or eyes.

Sulfamethoxazole/Trimethoprim Suspension

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Sulfamethoxazole/Trimethoprim Suspension:

Appetite loss; nausea; vomiting.

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); blistered, peeling, red, or swollen skin; bloody or black, tarry stools; chest pain; chills, fever, or sore throat; decreased urination; depression; hallucinations; irregular heartbeat; joint or muscle pain; painful or stiff neck; purple patches under the skin; seizures; severe diarrhea; severe or persistent cough; severe or persistent headache; severe or persistent nausea or vomiting; shortness of breath; stomach cramps/pain; unusual bruising or bleeding; unusual tiredness or weakness; unusually pale skin; vaginal irritation or discharge; yellowing of the skin or eyes.

Sulfamethoxazole/Trimethoprim Tablets

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Sulfamethoxazole/Trimethoprim Tablets:

Appetite loss; nausea; vomiting.

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); blistered, peeling, red, or swollen skin; bloody or black, tarry stools; chest pain; chills, fever, or sore throat; decreased urination; depression; hallucinations; irregular heartbeat; joint or muscle pain; painful or stiff neck; purple patches under the skin; seizures; severe diarrhea; severe or persistent cough; severe or persistent headache; severe or persistent nausea or vomiting; shortness of breath; stomach cramps/pain; unusual bruising or bleeding; unusual tiredness or weakness; unusually pale skin; vaginal irritation or discharge; yellowing of the skin or eyes.

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