Histex-AC Side Effects

Generic name: codeine / phenylephrine / triprolidine

Note: This document provides detailed information about Histex-AC Side Effects associated with codeine / phenylephrine / triprolidine. Some dosage forms listed on this page may not apply specifically to the brand name Histex-AC.

Applies to codeine / phenylephrine / triprolidine: oral liquid.

Important warnings This medicine can cause some serious health issues

Codeine can slow or stop your breathing, and may be habit-forming. MISUSE OF THIS MEDICINE CAN CAUSE ADDICTION, OVERDOSE, OR DEATH, especially in a child or other person using the medicine without a prescription.

This medicine is not for use in anyone under 18.

You should not use antihistamine medication to make a child sleepy.

Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Like other narcotic medications, codeine can slow your breathing. Death may occur if breathing becomes too weak.

A person caring for you should seek emergency medical attention if you have slow breathing with long pauses, blue colored lips, or if you are hard to wake up.

Like other narcotic medications, codeine can slow your breathing. Death may occur if breathing becomes too weak.

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

• noisy breathing, sighing, shallow breathing;

• a slow heart rate or weak pulse;

• nervousness, trouble sleeping;

• severe headache or dizziness, ringing in your ears;

• severe constipation; or

• little or no urination.

Serious side effects may be more likely in older adults and those who are overweight, malnourished, or debilitated.

Common side effects may include:

• dizziness, drowsiness, tired feeling;

• dry mouth, nose, or throat;

• blurred vision;

• nausea, vomiting, constipation; or

• sleep problems (insomnia).

Side effects such as dry mouth, constipation, and confusion may be more likely in older adults.

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 codeine/phenylephrine/triprolidine: oral liquid.

General adverse events

The most commonly occurring side effects include dry mouth, dizziness, sleepiness, and disturbed coordination.^[Ref]

Cardiovascular

• Frequency not reported: Hypotension, palpitations, tachycardia, extrasystoles

Gastrointestinal

• Frequency not reported: Dry mouth, dry throat, epigastric distress, anorexia, nausea, vomiting, diarrhea, constipation

Genitourinary

• Frequency not reported: Urinary frequency, difficult urination, urinary retention

Psychiatric

• Frequency not reported: Confusion, restlessness, excitation, anxiety, nervousness, irritability, insomnia, euphoria, hysteria, hallucination

Ocular

• Frequency not reported: Blurred vision, diplopia

Other

• Frequency not reported: Chills, fatigue, vertigo, tinnitus

Dermatologic

• Frequency not reported: Drug rash, photosensitivity, excessive perspiration, urticaria

Nervous system

• Frequency not reported: Sedation, sleepiness, dizziness, disturbed coordination, tremor, paresthesias, neuritis, convulsions, CNS depression

Respiratory

• Frequency not reported: Nasal dryness, thickening of bronchial secretions, tightness of chest and wheezing, nasal stuffiness, respiratory depression

Further information

Histex-AC 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.

Note: Medication side effects may be underreported. If you are experiencing side effects that are not listed, submit a report to the FDA by following this guide.

Medical Disclaimer