penicillin can be harsh on the stomach. it is important to take it with food and not on an empty stomach. your pharmacist may also be able to flavor the medication to make it easier for your son to take. i would make sure the vomiting has subsided before giving him another dose. since i don’t know the original diagnosis or the reason for his penicillin prescription i wouldn’t know if the condition is causing the vomiting or the medication. let his stomach settle a bit and try giving him something small to eat something that will be light on his stomach. see if he can hold this down before giving him another dose of medication. if the vomiting continues consult your health care provider to discuss an option that may be less upsetting to his stomach.
my son vomited about 10 minutes after taking a second dose of penicillin for strep throat. should he take the next dose?