Welcome to Justanswer! I am Dr. Altman and happy to assist you both today!So sorry your little one is not feeling well todayLuckily these patches are not toxic
to dogs but can be a big risk for a foreign body obstruction if not torn up prior to ingestion. With her symptoms being lethargy and reduced appetite I definitely think it warrants a veterinary exam to rule out the possibility.In addition, in high concentrations (not typically enough in a patch but cannot be ruled out) estrogen sources can cause bone
marrow toxicity in dogs so running a basic blood panel to ensure that she is not anemic is also strongly advised.Tonight: - Start Pepcid (famotidine
) 10mg 1/2 tablet every 12 hours OR prilosec (omeprazole) 20 mg 1/2 tablet daily for the next 3 days (crushed if needed in water)- Offer small amount of white rice and boiled boneless or ground chicken
or ground beef. For example, one tablespoon hourly for a few hours then slowly start to increase the amount while reducing the frequency. Keep on this diet for several days then wean into regular diet. - If still lethargic and reduced appetite overnight, I would encourage having your family veterinarian perform an examination to determine the next step to getting her comfortable and whether this is related to ingestion of the patch.- Monitor gum color to ensure they are nice and pink and moist and not pale, blue, purple with stickiness Indications your dog should be seen by a veterinary er sooner include: sticky gums that are pale, yellow, blue, purple, temperature rectally >103.5, progressive lethargy with less responsiveness to you, vomiting or diarrhea that includes blood, resting respiratory rate (breaths per minute) >60, swollen abdomen.I hope this information is helpful but please let me know how else I can assist you both today If you have more questions or if I can help in any other way, please do not hesitate to ask! If you would like to accept my answer, please press RATE OUR CONVERSATION (I am not compensated in any other way). Bonuses are always welcome. Thanks!If you have additional questions after you rate the question, you are welcome to request me for additional conversations if I am on-line or by beginning your question "Dr. Altman..." or "Dogdoc4u..." and others will leave the questions for me. Good luck to you both!!!