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Tri-Histine Side Effects

Generic Name: pheniramine / phenyltoloxamine / pyrilamine

Note: This page contains side effects data for the generic drug pheniramine / phenyltoloxamine / pyrilamine. It is possible that some of the dosage forms included below may not apply to the brand name Tri-Histine.

Applies to pheniramine / phenyltoloxamine / pyrilamine: elixir

Check with your doctor if any of these most COMMON side effects persist or become bothersome:

Constipation; diarrhea; dizziness; drowsiness; excitability; headache; loss of appetite; nausea; nervousness or anxiety; trouble sleeping; upset stomach; vomiting; weakness.

Seek medical attention right away if any of these SEVERE side effects occur while taking pheniramine / phenyltoloxamine / pyrilamine:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); difficulty urinating or inability to urinate; fast or irregular heartbeat; hallucinations; seizures; severe dizziness, lightheadedness, or headache; tremor; trouble sleeping; vision changes.

It is possible that some side effects of Tri-Histine may not have been reported. These can be reported to the FDA here. Always consult a healthcare professional for medical advice.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Some side effects may not be reported. You may report them to the FDA.

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