Ephedrine injection uses?

Ephedrine injection is a sympathomimetic drug used mainly as a vasopressor to support blood pressure. Its primary and common uses include:

- Treating intraoperative hypotension, especially due to spinal/epidural anesthesia or anesthesia-related drops in blood pressure.
- Supporting blood pressure in acute hypotensive states (e.g., shock) when fluids alone are insufficient, typically in hospital/ICU settings.
- Treating bradycardia with accompanying hypotension during procedures (the drug can increase both BP and heart rate).

Less commonly, historically it has been used for bronchodilation, but this is not a first-line use today.

Notes on administration and safety:
- Dosing is determined by clinicians and is usually given as small IV boluses (for example, 5–10 mg per dose) and titrated to achieve the desired blood pressure; sometimes given as a continuous low-dose infusion.
- Contraindications and cautions: not suitable in tachyarrhythmias, uncontrolled hypertension, significant coronary artery disease, pheochromocytoma, or hypersensitivity. Use with caution in patients with thyrotoxicosis, glaucoma, or severe vascular disease; MAO inhibitors can interact and enhance effects.
- Common side effects include tachycardia, hypertension, arrhythmias, tremor, nervousness, and insomnia.

If you want, I can give more detail about specific anesthesia settings, ICU scenarios, or general dosing ranges.