Its use is recommended but not required. Use is generally not recommended during pregnancy. Use during pregnancy is not typically recommended. Use is not recommended during pregnancy or breastfeeding. Use is not recommended with liver problems. Laboratory confirmation is however strongly recommended. Equalising altitude is recommended but not required. Use is generally not recommended together with opioids. Accordingly, supplementation is not currently recommended for treatment or prevention of asthma. Surgery is not recommended for children, however. Even when tests are available, they may not be recommended for everyone. A supplementation is also recommended for children. Thus, its use is not recommended. It is also sometimes recommended for epilepsy. However, it is not recommended during a cesarean section.