What are some of the long term health effect of poisoning to a small yorkie dog in the first 10weeks of lif

hi Sophia.
read up at this link.
https://health.usnews.com/health-news/patient-advice/articles/2015/06/11/what-are-the-long-term-effects-of-taking-antidepressants
or this.
Long Term Effects of Prenatal Antidepressant Exposure
or.
What Are the Long Term Effects of Prenatal Antidepressant Exposure MGH...

Antidepressants long exposure Side effects Google Search

They could also have allergies, sometime arecallergic tomplastic water bowl etc, or grass.
Check with Vet to be sure.
:)

Overdose If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center. Symptoms of overdose may include: nausea/vomiting, loss of appetite, mental/mood changes, headache, weakness, dizziness.

Pumpkin Seeds

• Pumpkin seeds are used fresh, raw and without salt. They have long been known as an anti-parasitic (gets rid of parasites) in humans as well as dogs. They are not poisonous and contain many valuable nutrients.
  

Diatomaceous Earth

• Food-grade diatomaceous earth is an excellent parasitic, it isn't poisonous, and can be given for several days without problems. Use as much as 1 heaping tsp. for every five lbs. of animal weight.
  

Black Walnut

• Black walnut is a very effective cure for intestinal parasites, but it can be poisonous if taken too often and in large amounts. It doesn't take more than a few mg per lb. for each dog.
  

Wormwood

• This is another common herb that's often used for getting rid of parasites--but like black walnut, it can be poisonous due to a high level of tannins. Careful use of wormwood will produce the desired results, but it should not be used often.
  

Is It Worms?

• There are many signs of worms, from bloated stomach to bloody stool or excessive coughing. Worms are a serious condition if left untreated because they soak up all of the vital nutrients a dog needs to survive. However, the signs of a worm infestation are similar to many illnesses, and some are equally lethal. Know what you're dealing with before attempting to treat it. Take a fecal sample to your veterinarian to check for worms for a very small fee.
  

I seriously doubt that the dose of Benadryl you gave which equals 50mg will cause nothing more than drowsiness and temporary lethargy. My 25lb dog gets 50mg Benadryl most summer days for her allergies and she has no ill effects.Unless your dog has some underlying condition she should have no long term damage to her health.

Google it, try Pet Smart, Petco, or even ask a local pet store.

If you need further help, reach me via phone at https://www.6ya.com/expert/frankie_091f536560a54e12

athough it says dalmation it still has different dogs