- Sensation of heat, particularly with large doses or rapid administration, especially magnesium and calcium. This can last 1-2 days.
- Sharper visual acuity and colour perception immediately after an injection, as if someone had turned the lights on. In some cases, this could last up to one or two days.
- This is due to rapid administration of magnesium, which can lead to light-headedness or even syncope.
There have been rare reporting’s of:
- Dermatologic — rash, erythema, pruritus
- CNS — headache, dizziness, agitation, anxiety
- Ophthalmic — diplopia
- Allergic — urticaria, periorbital and digital oedema