Injections are indicated in the emergency treatment of anaphylaxis and angioedema as an adjunct to adrenaline (epinephrine) and other standard measures.
Injections can also be used to relieve allergy symptoms such as acute urticaria, allergic reactions to insect bites and stings, drug and food reactions, seasonal hay fever, vasomotor rhinitis, coughs, colds, motion sickness and severe itching of undetermined origin.
How does chlorohistol work:
Chlorohistol binds to the histamine H1 receptor. This blocks the action of endogenous histamine, which subsequently leads to temporary relief of negative symptoms caused by histamine.
Warnings and precautions:
It may cause mild sedation, and patients undergoing ongoing treatment are advised to avoid operating machinery.
Not recommended during pregnancy and breastfeeding.
It should be used with caution in cases of epilepsy.
It should be used with caution if you suffer from an enlarged prostate.
Use with caution if you suffer from liver disease.
The ability to drive or operate machinery may be impaired.
Caution may also be necessary in patients with severe hypertension, cardiovascular disease, bronchitis, asthma, and thyrotoxicosis.
It should also be used with caution in children and elderly patients because they are more susceptible to side effects.
Chlorpheniramine is considered safe to use in patients with porphyria.
side effects:
Drowsiness, dizziness, headache.
Psychomotor weakness.
Urinary retention.
Dry mouth.
Blurred vision.
Gastrointestinal disorders.
Paradoxical stimulation rarely occurs, especially at high doses or in children.