Symptoms Low blood pressure does not necessarily cause symptoms and often remains asymptomatic. Possible symptoms include: Pale and cold skin, cold hands and feet, sweating. Visual disturbances: Blackening in front of the eyes, flickering, parts of the visual field fail Concentration disorders Rapid pulse, palpitations Ringing in the ears Dizziness Weakness, fatigue, lack of performance … Low Blood Pressure
Symptoms Migraine occurs in attacks. It may announce itself up to three days before an attack with various precursors (prodromes). These include, for example: Mood changes Fatigue Hunger Frequent yawning Irritability Aura may occur before the headache phase in up to about one-third of patients: Visual disturbances such as flickering lights, dots or lines, facial … Migraine Headache
Products Etilefrin is commercially available in drop form (Effortil) and has been approved in many countries since 1958. The combination with dihydroergotamine (Effortil plus) is no longer marketed. Structure and properties Etilefrin (C10H15NO2, Mr = 181.23 g/mol) is a racemate and is present in drugs as etilefrine hydrochloride, a white crystalline powder or colorless crystals … Etilefrin
Structure and properties Depending on the side chains, ergot alkaloids are classified into two different groups: Ergometrine-type ergot alkaloids (e.g., ergometrine, methylergometrine). Peptide-type ergot alkaloids (e.g., ergotamine, ergotoxine, bromocriptine). Effects Ergot alkaloids exhibit the following effects in varying degrees: Partial agonists at alpha-adrenoreceptors. Partial agonists at serotonin receptors Stimulation of dopamine receptors Contraction of vascular … Ergot Alkaloids
