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Delsym in Dogs

By Maureen Malone | Updated September 26, 2017

Delsym is a brand name medication for humans used as a cough suppressant. The generic name for Delsym is dextromethorphan, which also may be prescribed to your dog to relieve his cough.

Some causes of coughing in dogs include kennel cough or other respiratory infection, irritation from pulling on his collar, heart failure, foreign material in the airway, heartworms and lung cancer.

Side Effects of Delsym

Delsym may cause drowsiness or upset stomach in your dog. Administer the medication with food to minimize side effects. Irritability, confusion, excitability and nervousness may be a sign of a more serious side effect. If you see these in your dog, contact your veterinarian immediately. Medications that depress the central nervous system may interact with Delsym.


Maureen Malone started writing in 2008. She writes articles for business promotion and informational articles on various websites. Malone has a Bachelor of Science in technical management with an emphasis in biology from DeVry University.