Dee Snor Anti-Snoring Syrup is a product marketed to reduce snoring. Like many herbal or over-the-counter remedies, it may have potential side effects, although specific clinical data on this product might be limited.

Possible side effects could include:

• Allergic reactions such as rash, itching, or swelling.
• Gastrointestinal discomfort like nausea or upset stomach.
• Drowsiness or dizziness in some individuals.

It's important to:

• Check the ingredient list for any known allergies.
• Consult a healthcare professional before starting any new supplement, especially if you have existing health conditions or are taking other medications.

If you experience any adverse effects after using the syrup, discontinue use and seek medical advice promptly. Always use the product as directed on the label or by a healthcare provider. Consulting an ear, nose, and throat (ENT) specialist may also be helpful for persistent snoring issues.