what particular dosage form is recommended for babies?

Answer 1

Oral dosage form (drops or suspensions) is recommended for babies.

Suppositories comes next if such form is available. Transdermal forms has been found successful too when oral or rectal administrations become difficult.

Injection forms would be another option in line as required by the condition that needs to be treated.

Answer 2

it depends on the medicine and the condition of the baby. Antibiotics can be given IV in the hospital, or orally if the baby is at home. Medicine such as Tylenol can be given by mouth or rectally