Phentermine should be used with caution in those with mild to moderate hypertension (high blood pressure). In the first days of treatment, ensure that there is no loss of control or fluctuations in blood pressure.
Phentermine should not be used if you are intending to become pregnant, during pregnancy or breastfeeding – inform your doctor immediately if you become pregnant while on phentermine.
Inform your doctor if you have any medical conditions (e.g. heart condition, high blood pressure, history of seizures) or are taking other medications.
Inform doctor if taking psychotropic drugs