Drugs with a Wide Therapeutic Index

Examples of Drugs with Wide Therapeutic Index

Selective Serotonin Reuptake Inhibitors (SSRIs) such as fluoxetine, citalopram, and escitalopram have wider therapeutic indices compared to older antidepressants, according to the American Academy of Sleep Medicine 1
Levetiracetam has a relatively wide therapeutic index compared to other anti-seizure medications like phenytoin or carbamazepine, as reported in the BMJ 2, 3
Proton pump inhibitors (PPIs) such as omeprazole and pantoprazole have a wide therapeutic index, as noted by the American Academy of Sleep Medicine 1
H2 receptor antagonists like ranitidine and famotidine have a wide therapeutic index, according to Pediatrics 4
Albuterol and other beta-2 agonists have relatively wide therapeutic indices, as reported in Pharmacology and Therapeutics 5
Acetaminophen (at recommended doses) has a wide therapeutic index, according to the American Academy of Sleep Medicine 1
Most non-sedating antihistamines have a wide therapeutic index, as noted by the American Academy of Sleep Medicine 1
Statins (HMG-CoA reductase inhibitors) have a wide therapeutic index, according to the American Academy of Sleep Medicine 1
Angiotensin-converting enzyme (ACE) inhibitors have a wide therapeutic index, as reported in Pharmacology and Therapeutics 5

Greater flexibility in dosing for special populations (elderly, pediatric, renal/hepatic impairment) is allowed with drugs having a wide therapeutic index, as reported in Pediatrics 4
Drugs with wide therapeutic indices are generally less affected by changes in absorption due to food interactions, minor alterations in metabolism due to genetic polymorphisms, and moderate changes in renal or hepatic function, according to Pharmacology and Therapeutics 5

Drugs with wide therapeutic indices are often preferred when patient compliance may be variable, multiple comorbidities or polypharmacy exist, or drug interactions are likely, as noted by the American Academy of Sleep Medicine 1
Medications with wide therapeutic indices often allow for more aggressive dose rounding (up to 10-20%) without significant risk of adverse effects, particularly in pediatric populations, as reported in Pediatrics 4

Drugs with wide therapeutic indices have a lower risk of serious adverse events from minor dosing variations, according to the British Journal of Pharmacology 6
A fixed adult dose is often adequate for many drugs with wide therapeutic indices, with a minimal toxicity profile, as reported by the British Journal of Pharmacology 6