Relera Side Effects
Generic Name: chlorpheniramine / phenylephrine
Note: This page contains side effects data for the generic drug chlorpheniramine / phenylephrine. It is possible that some of the dosage forms included below may not apply to the brand name Relera.
It is possible that some side effects of Relera may not have been reported. These can be reported to the FDA here. Always consult a healthcare professional for medical advice.
For the Consumer
Applies to chlorpheniramine / phenylephrine: chewable tablets
Other dosage forms:
Check with your doctor if any of these most COMMON side effects persist or become bothersome:
Seek medical attention right away if any of these SEVERE side effects occur while taking chlorpheniramine / phenylephrine:
Constipation; diarrhea; dizziness; drowsiness; dry mouth, nose, or throat; excitability; headache; loss of appetite; nausea; nervousness or anxiety; trouble sleeping; upset stomach; vomiting; weakness.
Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); blurred vision or other vision changes; confusion; difficulty urinating or inability to urinate; fast or irregular heartbeat; fever, chills, or persistent sore throat; hallucinations; mood or mental changes; persistent trouble sleeping; restlessness; seizures; severe dizziness, drowsiness, lightheadedness, or headache; tremor.
For Healthcare Professionals
Applies to chlorpheniramine / phenylephrine: oral capsule extended release, oral drops, oral elixir, oral liquid, oral suspension, oral suspension extended release, oral syrup, oral tablet, oral tablet chewable, oral tablet extended release
General side effects including drowsiness, lassitude, giddiness, and increased irritability or excitement have been reported.[Ref]
Gastrointestinal side effects including nausea and dryness of mouth have been reported.[Ref]
Cardiovascular side effects including palpitations and flushing have been reported.[Ref]
1. "PDR Generics. 4th ed." Montvale, NJ: Medical Economics (1998):