Classes
Carbocisteine / Promethazine
DAE Class; Rx
Common Brand Names; RHINATHIOL PROMETH
- Other Drugs Acting on the Respiratory System
Description
Carbocisteine is a mucolytic agent that reduces goblet cell hyperplasia in the management of respiratory disorders associated with abnormally excessive or viscous mucus secretion.
Promethazine is a phenothiazine derivative which blocks postsynaptic mesolimbic dopaminergic receptors in the brain. It exhibits a strong α-adrenergic blocking effect and depresses the release of hypothalamic and hypophyseal hormones. It competes with histamine for the H1-receptor; muscarinic blocking effect may be responsible for antiemetic activity. It also reduces stimuli to the brainstem reticular system.
Onset: Promethazine: Approx 20 minutes.
Indications
Indicated in Respiratory tract infections associated with excessive and/or viscous mucus
Contraindications
Active peptic ulcer. Children <2 years.
Adverse Effects
Significant: Anticholinergic effects (e.g. blurred vision, dry mouth, urinary retention). Drowsiness, dizziness, restlessness, headache, nightmare, tiredness, disorientation, photosensitivity.
Gastrointestinal disorders: Nausea, gastric discomfort, GI bleeding, diarrhoea.
Skin and subcutaneous tissue disorders: Rarely, rash, urticaria, pruritus.
Potentially Fatal: Respiratory depression and apnoea especially in children.
Warnings
Patient with epilepsy, signs and symptoms suggestive of Reye’s syndrome. Children >2 years. Pregnancy and lactation.
Maximum Dosage
Oral
Respiratory tract infections associated with excessive and/or viscous mucus
Each bottle contains carbocisteine 100 mg and promethazine hydrochloride 2.5 mg
15 mL tid.
Child: Each bottle contains carbocisteine 100 mg and promethazine hydrochloride 2.5 mg
<2 years Not recommended. 2-5 years 2.5-5 mL four times a day. 6-12 years 7.5-12.5 mL tid. 12-15 years 12.5-15 mL tid.
How supplied
Carbocisteine / Promethazine
Syrup