Anticholinergic Drugs
Drugs with anticholinergic activity are commonly used in older people [10]. Examples are shown in the table below.
Table 1 Anticholinergic drugs
| Type of drug | Example |
| Antihistamine | Hydroxyzine, diphenhydramine |
| Antispasmodic | Alverine, hyoscyamine |
| Tricyclic antidepressant | Amitriptyline |
| Benzodiazepine | Lorazepam |
| Analgesic | Codeine |
| Antiarrhythmic | Digoxin |
| Diuretic | Furosemide |
| Antiparkinsonian | Orphenadrine, benzatropine (US vs. UK) |
| Bladder stabiliser | Oxybutynin |
| Bronchodilator | Theophylline |
When several of these are co-prescribed, the anti-cholinergic burden (ACB) is increased and leads to greatly increased risk of adverse effects in the elderly [11].