| Category of Drug | Chlorpheniramine is Antiallergics and Drugs used in Anaphylaxis |
| Mechanism of Action | |
| Indications | Chlorpheniramine is used in 1. Symptomatic relief of allergy 2. Allergic rhinitis (hay fever) 3. Conjunctivitis 4. Urticaria 5. Insect stings and pruritus of allergic origin 6. Adjunct in the emergency treatment of anaphylactic shock and severe angioedema. |
| Well Known Pharmaceutical Brands | |
| Available dosage forms | 1. TABLETS 2. INJECTION 3. CAPSULES 4. SYRUP |
| Dose | |
| Contraindications | 1. Prostatic enlargement 2. Urinary retention 3. Ileus or pyloroduodenal obstruction 4. Asthma 5. Child under 1 year 6. Hypersensitivity 7. Narrow angle glaucoma 8. Pregnancy 9. Lactation |
| Precautions | 1. Performing works requiring utmost alertness such as vehicle driving, operating machines etc within 24 h of taking the drug should be avoided. 2.Lactation 3. Renal and hepatic impairment 4. Epilepsy 5. Interactions 6. Atrophic gastritis 7. Elderly |
| Adverse Effects | 1. Drowsiness 2.Hypotension 3. Headache 4. Palpitations, 5. Psychomotor impairment 6.Urinary retention 7.Dry mouth 8. Blurred Vision 9.Gastrointestinal disturbances 10. Liver dysfunction 11. Blood disorders also rash and photosensitivity reactions 12. Hypersensitivity reactions 13.Sweating and tremor 14. Injections may be irritant 15. Flatulence 16. Diarrhoea. |
| Pregnancy Category | C |
