Q-Hist LA Side Effects

Generic name: chlorpheniramine / phenylephrine / phenyltoloxamine

Note: This document provides detailed information about Q-Hist LA Side Effects associated with chlorpheniramine / phenylephrine / phenyltoloxamine. Some dosage forms listed on this page may not apply specifically to the brand name Q-Hist LA.

Applies to chlorpheniramine / phenylephrine / phenyltoloxamine: oral liquid.

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

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

• fast or uneven heart rate;

• pounding heartbeats or fluttering in your chest;

• painful or difficult urination, little or no urinating;

• tremors, seizure (convulsions); or

• vision changes, severe dizziness, feeling like you might pass out.

Common side effects may include:

• headache, dizziness, drowsiness;

• dry mouth, nose, or throat;

• upset stomach, loss of appetite, nausea, constipation;

• blurred vision;

• sleep problems (insomnia); or

• feeling restless or excited (especially in children).

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

Further information

Q-Hist LA 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