Before you begin using a medication, be sure to inform your doctor of any medical conditions or allergies you may have, any medications you are taking, whether you are pregnant or breast-feeding, and any other significant facts about your health. These factors may affect how you should use this medication.
Dependence: If you take dihydroergotamine for extended periods of time you may become dependent upon it and require progressively increasing doses for relief of headaches or to prevent the increasing unpleasant effects which may follow withdrawal of the medication.
Drowsiness/reduced alertness: You should not undertake activities requiring mental alertness, such as operating equipment or driving a vehicle, until you determine your response and sensitivity to this medication.
Overdose: It is important to stay within the limits of the recommended dosage of this medication and avoid excessive or prolonged use. An overdose of ergotamine is dangerous, and may cause the following effects:
- cold and pale skin
- muscle pain
- pain like that of angina
- rapid and weak pulse
- rise and/or fall of blood pressure (usually in that order)
- slow or fast heart rate
- tingling and numbness of the extremities
If an overdose is suspected, seek medical help immediately.
Pregnancy: Dihydroergotamine may cause harm when taken during pregnancy. If you become pregnant while using this medication, contact your doctor immediately.
Breast-feeding: Dihydroergotamine passes into breast milk and may cause symptoms of vomiting, diarrhea, weak pulse, and unstable blood pressure in nursing infants. If you are a breast-feeding mother you should not take this medication.
Children: The safety and effectiveness of this medication for children less than 16 years of age have not been established. It is not recommended for use by children.