Silphen DM Side Effects
Generic Name: dextromethorphan
Note: This document contains side effect information about dextromethorphan. Some of the dosage forms listed on this page may not apply to the brand name Silphen DM.
Some side effects of Silphen DM may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA.
For the Consumer
Applies to dextromethorphan: oral capsule, oral capsule liquid filled, oral elixir, oral liquid, oral lozenge/troche, oral solution, oral suspension, oral suspension extended release, oral syrup, oral tablet
Along with its needed effects, dextromethorphan (the active ingredient contained in Silphen DM) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor as soon as possible if any of the following side effects occur while taking dextromethorphan:Symptoms of overdose
- Blurred vision
- difficulty in urination
- drowsiness or dizziness
- nausea or vomiting (severe)
- shakiness and unsteady walk
- slowed breathing
- unusual excitement, nervousness, restlessness, or irritability (severe)
Some side effects of dextromethorphan may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:Less common or rare
- dizziness (mild)
- drowsiness (mild)
- nausea or vomiting
- stomach pain
For Healthcare Professionals
Applies to dextromethorphan: compounding powder, oral capsule, oral disintegrating strip, oral drops, oral liquid, oral lozenge, oral solution, oral suspension extended release, oral syrup, oral tablet chewable
Nervous system side effects have included drowsiness and dizziness. Other side effects such as excitation, mental confusion, and opioid like respiratory depression have been rare and occurred at higher dosages. In some cases of abuse, patients experienced euphoria, hyperactivity, mania, and auditory and visual hallucinations.
Gastrointestinal side effects have included stomach upset.
Hypersensitivity side effects have included rare reports of fixed-drug eruptions.
More about Silphen DM (dextromethorphan)
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