Carbinoxamine / Methscopolamine / Pseudoephedrine Side Effects

Applies to carbinoxamine/methscopolamine/pseudoephedrine: oral syrup, oral tablet extended release.

Important warnings This medicine can cause some serious health issues

Always ask a doctor before giving a cough or cold medicine to a child. Death can occur from the misuse of cough and cold medicines in very young children.

Do not use a cold medicine if you have used an MAO inhibitor such as isocarboxazid (Marplan), phenelzine (Nardil), rasagiline (Azilect), selegiline (Eldepryl, Emsam), or tranylcypromine (Parnate) within the past 14 days. Serious, life-threatening side effects can occur if you take cold medicine before the MAO inhibitor has cleared from your body.

Do not use any other over-the-counter cough, cold, allergy, or sleep medication without first asking your doctor or pharmacist.

If you take certain products together you may accidentally take too much of one or more types of medicine. Read the label of any other medicine you are using to see if it contains an antihistamine or decongestant.

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

Stop using this medication and call your doctor at once if you have any of these serious side effects:

• feeling light-headed, fainting;

• urinating less than usual or not at all;

• wheezing, tightness in your chest;

• fast or pounding heartbeat; or

• pale skin, easy bruising or bleeding.

Continue taking this medication and talk to your doctor if you have any of these less serious side effects:

• drowsiness, dizziness;

• lack of coordination;

• upset stomach;

• stuffy nose, chest congestion;

• sleep problems (insomnia);

• feeling restless or excited (especially in children);

• dry mouth or nose; or

• blurred vision.

Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome.

For healthcare professionals

Applies to carbinoxamine / methscopolamine / pseudoephedrine: oral syrup, oral tablet extended release.

Cardiovascular adverse events

Cardiovascular side effects have included pallor, tachycardia, palpitations, arrhythmias, and cardiovascular collapse with hypotension.^[Ref]

Nervous system

Nervous system side effects have included nervousness, insomnia, restlessness, headache, irritability, fear, anxiety, tenseness, tremor, weakness, hallucinations, convulsions, drowsiness, dizziness, and central nervous system depression.^[Ref]

Ocular

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

Gastrointestinal

Gastrointestinal side effects have included gastric irritation, and excessive dryness of the nose, throat and mouth.^[Ref]

Genitourinary

Genitourinary side effects have included dysuria and urinary retention in patients with prostatic hypertrophy.^[Ref]

Respiratory

Respiratory side effects have included respiratory difficulty.^[Ref]

Further information

Carbinoxamine/methscopolamine/pseudoephedrine 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