Dimetapp Children's Nighttime Cold & Congestion Side Effects

Generic Name: diphenhydramine / phenylephrine

Note: This page contains information about the side effects of diphenhydramine / phenylephrine. Some of the dosage forms included on this document may not apply to the brand name Dimetapp Children's Nighttime Cold & Congestion.

Not all side effects for Dimetapp Children's Nighttime Cold & Congestion 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 diphenhydramine / phenylephrine: tablets

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

Constipation; diarrhea; dizziness; drowsiness; dry mouth, nose, or throat; excitability (especially in children); headache; loss of appetite; nausea; nervousness; restlessness; trouble sleeping; vomiting.

Seek medical attention right away if any of these SEVERE side effects occur while taking diphenhydramine / phenylephrine:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); blurred vision; chest pain; decreased coordination; difficulty urinating; fast or irregular heartbeat; fever; hallucinations; seizure; severe dizziness or drowsiness; severe nervousness, anxiety, restlessness, or trouble sleeping; tremors; unusual weakness.

For Healthcare Professionals

Applies to diphenhydramine / phenylephrine: oral disintegrating strip, oral liquid, oral suspension extended release, oral tablet chewable extended release

Cardiovascular

Cardiovascular side effects have included hypotension, palpitations, tachycardia, and extrasystole.

Hematologic

Hematologic side effects have included hemolytic anemia, agranulocytosis, and thrombocytopenia.

Nervous system

Nervous system side effects have included sleepiness, sedation, dizziness, disturbed coordination, fatigue, confusion, restlessness, excitation, nervousness, tremor, irritability, insomnia, euphoria, paresthesia, headache, vertigo, tinnitus, acute labyrinthitis, neuritis, and convulsions.

Ocular

Ocular side effects have included blurred vision and diplopia.

Gastrointestinal

Gastrointestinal side effects have included epigastric distress, anorexia, nausea, vomiting, diarrhea, and constipation.

Genitourinary

Genitourinary side effects have included urinary frequency, difficult urination, urinary retention, and early menses.

Hypersensitivity

Hypersensitivity side effects have included urticaria, drug rash, anaphylactic shock, and photosensitivity.

General

General side effects have included chills, excessive perspiration, and dryness of nose, throat and mouth.

Disclaimer: Every effort has been made to ensure that the information provided is accurate, up-to-date and complete, but no guarantee is made to that effect. In addition, the drug information contained herein may be time sensitive and should not be utilized as a reference resource beyond the date hereof. This material does not endorse drugs, diagnose patients, or recommend therapy. This information is a reference resource designed as supplement to, and not a substitute for, the expertise, skill , knowledge, and judgement of healthcare practitioners in patient care. The absence of a warning for a given drug or combination thereof in no way should be construed to indicate safety, effectiveness, or appropriateness for any given patient. Drugs.com does not assume any responsibility for any aspect of healthcare administered with the aid of materials provided. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the substances you are taking, check with your doctor, nurse, or pharmacist.

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