See also the How to Use and Warning sections.

Caution is advised when using this drug in children (see also the Warning section).

See Warning section.

Caution is advised when using this drug in children because they may be more sensitive to its effects, especially slowed breathing (see Warning section).

See also the Warning section.

(See Warning section) Inform your doctor of any new symptoms or if your condition worsens.

This drug increases the risk of a possibly fatal brain infection (see Warning section for more details).

Unfortunately, other body parts may also be affected (see Warning section).

Stop taking this medication and tell your doctor right away if this very serious side effect occurs: lactic acidosis (see Warning section).