Alahist DHC Side Effects

Generic name: dihydrocodeine / phenylephrine

Note: This document provides detailed information about Alahist DHC Side Effects associated with dihydrocodeine / phenylephrine. Some dosage forms listed on this page may not apply specifically to the brand name Alahist DHC.

Applies to dihydrocodeine/phenylephrine: oral liquid.

Important warnings This medicine can cause some serious health issues

Do not use this medicine if you have used an MAO inhibitor in the past 14 days.

A dangerous drug interaction could occur.

MAO inhibitors include isocarboxazid, linezolid, methylene blue injection, phenelzine, rasagiline, selegiline, tranylcypromine, and others.

Get emergency medical help if you have any of these signs of an allergic reaction while taking dihydrocodeine / phenylephrine: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Stop using this medicine and call your doctor at once if you have:

• severe dizziness or drowsiness;

• weak or shallow breathing;

• severe restlessness or nervousness;

• severe constipation;

• pounding heartbeats or fluttering in your chest;

• painful or difficult urination; or

• little or no urinating.

Common side effects may include:

• mild drowsiness;

• dryness of your eyes, nose, and mouth;

• blurred vision; or

• nausea, vomiting, diarrhea, constipation.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects.

For healthcare professionals

Applies to dihydrocodeine / phenylephrine: oral liquid.

Nervous system

Nervous system side effects have included light-headedness, dizziness, drowsiness, headache, fatigue, sedation, confusion, hallucinations, vivid dreams, severe narcosis, lassitude, giddiness, increased irritability, and excitement.^[Ref]

Gastrointestinal

Gastrointestinal side effects have included nausea, vomiting, constipation, abdominal pain, dry mouth, indigestion, anorexia, and spasm of biliary tract.^[Ref]

Dermatologic

Dermatologic side effects have included sweating, pruritis, and skin reactions.^[Ref]

Renal

Renal side effects have included granulomatous interstitial nephritis and acute renal failure.^[Ref]

Cardiovascular

Cardiovascular side effects have included orthostatic hypotension and cardiac palpitations.^[Ref]

Respiratory

Respiratory side effects have included cough suppression.^[Ref]

Ocular

Ocular side effects have included blurred vision.^[Ref]

Hypersensitivity

Hypersensitivity side effects have included anaphylactoid reactions.^[Ref]

Genitourinary

Genitourinary side effects have included urinary retention.^[Ref]

Further information

Alahist DHC side effects can vary depending on the individual. 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.

Medical Disclaimer