I have had a friend buy a penicillin shot from the feed store and give it to their dogs. The dog got better and didn't hurt him.
Can You Give A Sick Dog Penicillin?
They can take the exact amount your vet recommends you give.
Visit a vet and ask because you will never know, that is best for your dogs safety
Penicillin is an antibiotic used to treat bacterial infection. There is no difference in the penicillin for humans and animals. Penicillin is same for animals and humans with difference only in dosages. In dogs dose of penicillin is 10000-25000 international units per pound body weight or 20000-50000 per Kg body weight for 2-6 times in a day.
No it will die
Only a vet can.