Codeprex Side Effects
Generic Name: chlorpheniramine / codeine
Note: This page contains information about the side effects of chlorpheniramine / codeine. Some of the dosage forms included on this document may not apply to the brand name Codeprex.
Not all side effects for Codeprex may be reported. You should always consult a doctor or healthcare professional for medical advice. Side effects can be reported to the FDA here.
For the Consumer
Applies to chlorpheniramine / codeine: liquid, 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 / codeine:
Constipation; diarrhea; dizziness; drowsiness; dry mouth, nose, or throat; excitability; headache; loss of appetite; nausea; thickening of mucus secretions; upset stomach; vomiting.
Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); blurred vision, double vision, or other vision changes; confusion; difficulty urinating or inability to urinate; fast, slow, or irregular heartbeat; loss of coordination; mood or mental changes; nervousness; ringing in the ears; seizures; severe dizziness, lightheadedness, or headache; severe drowsiness; shallow breathing; tremor; trouble sleeping; uncontrolled muscle movements; unusual bruising or bleeding; unusual weakness or tiredness.
For Healthcare Professionals
Applies to chlorpheniramine / codeine: oral liquid, oral suspension, oral suspension extended release, oral tablet
Cardiovascular side effects have included fast, slow, or pounding heartbeat, hypertension, hypotension, orthostatic hypotension, palpitation, shock-like state, and syncope.[Ref]
Nervous system side effects have included blurred, double, or other visual disturbances; confusion; dizziness; depression; drowsiness and sedation; headache; euphoria; facial dyskinesia; false sense of well-being; feeling faint, lightheadedness, general feeling of discomfort or illness; nervousness, agitation and restlessness; minimal sedation; somnolence; insomnia, dyskinesia, irritability, and tremor.[Ref]
Gastrointestinal side effects have included abdominal distension, abdominal pain, acute pancreatitis, constipation, diarrhea, dry mouth, dyspepsia, epigastric distress, loss of appetite, nausea, vomiting, and decreased gastric motility with increased likelihood of esophageal reflux.[Ref]
Respiratory side effects have included dryness of pharynx and respiratory passages, laryngismus, nasal stuffiness, wheezing or troubled breathing, and respiratory depression.[Ref]
Endocrine side effects have included changes in glucose utilization, decreased lactation, early menses, glycosuria, gynecomastia, hypoglycemia, increased appetite, increased libido, and pheochromocytoma stimulation.[Ref]
Dermatologic side effects have included dermatitis, excessive perspiration, urticaria, erythema, pruritus, and rash.[Ref]
Hypersensitivity side effects have included allergic laryngospasm, atelectasis, bronchospastic allergic reaction, hives, itching, and swelling of face.[Ref]
Ocular side effects have included blurred vision, diplopia, hypermetropia, lacrimation increased, mydriasis, and photophobia.[Ref]
General side effects have included asthenia, feeling of relaxation, redness or flushing of the face, and unusual tiredness or weakness.[Ref]
Other side effects have included labyrinthitis, tinnitus, and vertigo.[Ref]
Immunologic side effects have included drug fever.[Ref]
1. "Product Information. Zodryl AC Adult (chlorpheniramine-codeine)." codaDOSE Incorporated, Flowery Branch [Atlanta], GA.
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