TussiCaps combines the opioid analgesic, hydrocodone, with the H1 receptor antagonist,
chlorpheniramine. Hydrocodone is a semi-synthetic codeine derivative with analgesic, antitussive,
and CNS effects. Chlorpheniramine is an antihistamine agent with anticholinergic and sedative activity.
It prevents released histamine from dilating capillaries and causing edema of the respiratory mucosa.
Adults:
1 cap (10mg/8mg) every 12hrs; max: 2caps/24hrs.
Children:
<6yrs: see Contraindications. 6–11yrs: 1 cap (5mg/4mg) every 12hrs; max: 2caps/24hrs.
Contraindications:
Children <6yrs of age (risk of fatal respiratory depression).
Precautions:
Respiratory depression. Post-op. Pulmonary disease. Head injury. Increased intracranial pressure.
Glaucoma. Asthma. GI or GU obstruction. Acute abdomen. Severe hepatic or renal impairment. Hypothyroidism.
Addison’s disease. Elderly. Debilitated. Labor & delivery. Pregnancy (Cat.C). Nursing mothers: not recommended.
Interactions:
Additive CNS depression with alcohol, other CNS depressants, tricyclic antidepressants, MAOIs.
Paralytic ileus with concurrent anticholinergics.
Adverse reactions:
Nausea, vomiting, CNS and respiratory depression, ureteral and vesical sphincter spasm, chest
tightness, abuse potential, anticholinergic effects, rash, pruritis.