Antihistamines

• Chlorpheniramine (often in “night time” cold and allergy products)
• Dimenhydrinate (Gravol®)
• Diphenhydramine (Benadryl®, is also the active ingredient in Nytol®, Simply Sleep®, Unisom®)
• Hydroxyzine (Atarax®)

Antidepressants

• Amitriptyline (Elavil®)
• Imipramine (Tofranil®)
• Nortriptyline (Aventyl®)
• Paroxetine (Paxil®)

Antiparkinsonian Agents

• Benztropine (Cogentin®)
• Trihexyphenidyl (Artane®)

Other

• Belladonna
• Lomotil®
• Antiarrhythmics (Quinidine)
• Oxybutynin (Ditropan)

• Diazepam (Valium®)
• Flurazepam (Dalmane®)
• Lorazepam (Ativan®)
• Zopiclone (Imovane®)

Barbiturates

• Phenobarbital
• Amobarbital
• Secobarbital

• Meperidine (Demerol®)
• Morphine (Statex®, MS Contin®, M-Eslon®, Kadian®)

• Carbamazepine (Tegretol®)
• Phenytoin (Dilantin®)
• Phenobarbital
• Valproic Acid /Divalproex (Depekene®/Epival®)

• Acyclovir (Zovirax®)
• Quinolones: Levofl oxacin (Levaquin®), Ciprofl oxacin (Cipro®)
• Penicillins
• Sulfonamides: Co-trimoxazole (Septra®, Bactrim®)
• Aminoglycosides: Tobramycin, Gentamicin
• Antivirals: Valacyclovir (Valtrex), Famciclovir (Famvir)

• Amiodarone (Cordarone®)
• Digoxin (Lanoxin®)
• Diuretics - Furosemide (Lasix®)
• Lidocaine
• Beta-blockers - Propranolol (Inderol®)

• H2-Blockers - Cimetidine (Tagamet®); Ranitidine (Zantac®)
• Lithium
• Metoclopramide (Maxeran®) 
• NSAIDs

Corticosteroids

• Prednisone

• Benzodiazepines
• Alcohol