Benztropine

Benztropine Brand Name– Cogentin

What is Benztropine

Benztropine is an oral and parenteral synthetic muscarinic-receptor antagonist that is structurally similar to atropine and diphenhydramine.

It is used adjunctively with other antiparkinsonian agents to treat all types of parkinsonian syndromes including antipsychotic-induced extrapyramidal symptoms.

Although benztropine is a tertiary amine, and as such crosses into the CNS, it produces less CNS stimulation than does trihexyphenidyl.

The drug may be helpful in geriatric patients who cannot tolerate cerebral-stimulating agents. Benztropine has cumulative effects, and therapeutic benefit can take up to 2—3 days.

Benztropine has a longer duration of action and may require less frequent dosing than diphenhydramine. Benztropine was approved for use in 1954.

Indications

  • drug-induced extrapyramidal symptoms
  • Parkinson’s disease
  • parkinsonism
  • sialorrhea
  • tremor

For the treatment of parkinsonism or Parkinson’s disease, including tremor due to the disease

for idiopathic parkinsonism or Parkinson’s disease

Side Effects

  1. anhidrosis
  2. anxiety
  3. asthenia
  4. blurred vision
  5. confusion
  6. constipation
  7. cycloplegia
  8. delirium
  9. depression
  10. dizziness
  11. drowsiness
  12. dysuria
  13. fever
  14. hallucinations
  15. headache
  16. heat intolerance
  17. hyperthermia
  18. ileus
  19. insomnia
  20. memory impairment
  21. myasthenia
  22. mydriasis
  23. nausea
  24. ocular hypertension
  25. paresthesias
  26. parotitis
  27. psychosis
  28. rash
  29. sinus tachycardia
  30. toxic megacolon
  31. urinary retention
  32. vomiting
  33. weakness
  34. xerostomia

Monitoring Parameters

  • laboratory monitoring not necessary

Contraindications

  • alcoholism
  • ambient temperature increase
  • anticholinergic medications
  • autonomic neuropathy
  • behavioral changes
  • bladder obstruction
  • breast-feeding
  • cardiac disease
  • children
  • closed-angle glaucoma
  • contact lenses
  • dementia
  • driving or operating machinery
  • geriatric
  • hyperthermia
  • infants
  • myasthenia gravis
  • neonates
  • pregnancy
  • prostatic hypertrophy
  • psychosis
  • tachycardia
  • tardive dyskinesia
  • urinary retention

Interactions

  • Acetaminophen; Butalbital; Caffeine; Codeine
  • Acetaminophen; Caffeine; Dihydrocodeine
  • Acetaminophen; Caffeine; Magnesium Salicylate; Phenyltoloxamine
  • Acetaminophen; Caffeine; Phenyltoloxamine; Salicylamide
  • Acetaminophen; Chlorpheniramine; Dextromethorphan; Phenylephrine
  • Acetaminophen; Chlorpheniramine; Dextromethorphan; Pseudoephedrine
  • Acetaminophen; Chlorpheniramine; Phenylephrine; Phenyltoloxamine
  • Acetaminophen; Codeine
  • Acetaminophen; Dextromethorphan; Doxylamine
  • Acetaminophen; Diphenhydramine
  • Acetaminophen; Hydrocodone
  • Acetaminophen; Oxycodone
  • Acetaminophen; Pentazocine
  • Acetaminophen; Tramadol
  • Aclidinium
  • Aclidinium; Formoterol
  • Acrivastine; Pseudoephedrine
  • Albuterol; Ipratropium
  • Alfentanil
  • Alosetron
  • Aluminum Hydroxide
  • Aluminum Hydroxide; Magnesium Carbonate
  • Aluminum Hydroxide; Magnesium Hydroxide
  • Aluminum Hydroxide; Magnesium Hydroxide; Simethicone
  • Aluminum Hydroxide; Magnesium Trisilicate
  • Amantadine
  • Ambenonium Chloride
  • Amoxapine
  • Antacids
  • Antidiarrheals
  • Anxiolytics; Sedatives; and Hypnotics
  • Aspirin, ASA; Butalbital; Caffeine; Codeine
  • Aspirin, ASA; Caffeine; Dihydrocodeine
  • Aspirin, ASA; Caffeine; Orphenadrine
  • Aspirin, ASA; Carisoprodol; Codeine
  • Aspirin, ASA; Citric Acid; Sodium Bicarbonate
  • Aspirin, ASA; Oxycodone
  • Atropine; Edrophonium
  • Barbiturates
  • Belladonna; Opium
  • Benzhydrocodone; Acetaminophen
  • Benzodiazepines
  • Bismuth Subsalicylate
  • Bismuth Subsalicylate; Metronidazole; Tetracycline
  • Botulinum Toxins
  • Brompheniramine
  • Brompheniramine; Carbetapentane; Phenylephrine
  • Brompheniramine; Dextromethorphan; Guaifenesin
  • Brompheniramine; Guaifenesin; Hydrocodone
  • Brompheniramine; Hydrocodone; Pseudoephedrine
  • Brompheniramine; Pseudoephedrine
  • Buprenorphine
  • Buprenorphine; Naloxone
  • Bupropion
  • Bupropion; Naltrexone
  • Butorphanol
  • Calcium Carbonate
  • Calcium Carbonate; Magnesium Hydroxide
  • Calcium Carbonate; Risedronate
  • Calcium Carbonate; Simethicone
  • Carbetapentane; Chlorpheniramine
  • Carbetapentane; Chlorpheniramine; Phenylephrine
  • Carbetapentane; Diphenhydramine; Phenylephrine
  • Carbetapentane; Guaifenesin
  • Carbetapentane; Guaifenesin; Phenylephrine
  • Carbetapentane; Phenylephrine
  • Carbetapentane; Phenylephrine; Pyrilamine
  • Carbetapentane; Pseudoephedrine
  • Carbetapentane; Pyrilamine
  • Carbidopa; Levodopa
  • Carbidopa; Levodopa; Entacapone
  • Carbinoxamine
  • Carbinoxamine; Dextromethorphan; Pseudoephedrine
  • Carbinoxamine; Hydrocodone; Phenylephrine
  • Carbinoxamine; Hydrocodone; Pseudoephedrine
  • Carbinoxamine; Phenylephrine
  • Carbinoxamine; Pseudoephedrine
  • Cetirizine
  • Cetirizine; Pseudoephedrine
  • Chlophedianol; Dexbrompheniramine
  • Chlophedianol; Dexchlorpheniramine; Pseudoephedrine
  • Chlorcyclizine
  • Chlorpheniramine
  • Chlorpheniramine; Codeine
  • Chlorpheniramine; Dextromethorphan
  • Chlorpheniramine; Dextromethorphan; Phenylephrine
  • Chlorpheniramine; Dihydrocodeine; Phenylephrine
  • Chlorpheniramine; Dihydrocodeine; Pseudoephedrine
  • Chlorpheniramine; Guaifenesin; Hydrocodone; Pseudoephedrine
  • Chlorpheniramine; Hydrocodone
  • Chlorpheniramine; Hydrocodone; Phenylephrine
  • Chlorpheniramine; Hydrocodone; Pseudoephedrine
  • Chlorpheniramine; Phenylephrine
  • Chlorpheniramine; Pseudoephedrine
  • Chlorpromazine
  • Cholinergic agonists
  • Cisapride
  • Clemastine
  • Clozapine
  • Codeine
  • Codeine; Guaifenesin
  • Codeine; Phenylephrine; Promethazine
  • Codeine; Promethazine
  • Crofelemer
  • Cyclizine
  • Cyclobenzaprine
  • Cyproheptadine
  • Dexchlorpheniramine
  • Dexchlorpheniramine; Dextromethorphan; Pseudoephedrine
  • Dextromethorphan; Diphenhydramine; Phenylephrine
  • Dextromethorphan; Promethazine
  • Dextromethorphan; Quinidine
  • Digoxin
  • Dihydrocodeine; Guaifenesin; Pseudoephedrine
  • Dimenhydrinate
  • Diphenhydramine
  • Diphenhydramine; Hydrocodone; Phenylephrine
  • Diphenhydramine; Ibuprofen
  • Diphenhydramine; Naproxen
  • Diphenhydramine; Phenylephrine
  • Disopyramide
  • Donepezil
  • Donepezil; Memantine
  • Doxylamine
  • Doxylamine; Pyridoxine
  • Dronabinol
  • Droperidol
  • Edrophonium
  • Eluxadoline
  • Erythromycin
  • Erythromycin; Sulfisoxazole
  • Ethanol
  • Ezogabine
  • Fentanyl
  • Fluoxetine; Olanzapine
  • Fluphenazine
  • Fluticasone; Umeclidinium; Vilanterol
  • Galantamine
  • Glucagon
  • Glycopyrronium
  • Guaifenesin; Hydrocodone
  • Guaifenesin; Hydrocodone; Pseudoephedrine
  • Haloperidol
  • Homatropine; Hydrocodone
  • Hydrocodone
  • Hydrocodone; Ibuprofen
  • Hydrocodone; Phenylephrine
  • Hydrocodone; Potassium Guaiacolsulfonate
  • Hydrocodone; Potassium Guaiacolsulfonate; Pseudoephedrine
  • Hydrocodone; Pseudoephedrine
  • Hydromorphone
  • Hydroxyzine
  • Ibuprofen; Oxycodone
  • Ipratropium
  • Itraconazole
  • Levocetirizine
  • Levodopa
  • Levorphanol
  • Linaclotide
  • Loperamide
  • Loperamide; Simethicone
  • Loxapine
  • Lubiprostone
  • Lurasidone
  • Macimorelin
  • Magnesium Hydroxide
  • Maprotiline
  • Meclizine
  • Memantine
  • Meperidine
  • Meperidine; Promethazine
  • Methacholine
  • Methadone
  • Metoclopramide
  • Mirtazapine
  • Molindone
  • Morphine
  • Morphine; Naltrexone
  • Nabilone
  • Nalbuphine
  • Neostigmine
  • Nitrofurantoin
  • Olanzapine
  • Omeprazole; Sodium Bicarbonate
  • Orphenadrine
  • Oxycodone
  • Oxymorphone
  • Paroxetine
  • Pentazocine
  • Pentazocine; Naloxone
  • Perphenazine
  • Perphenazine; Amitriptyline
  • Phentermine; Topiramate
  • Phenylephrine; Promethazine
  • Physostigmine
  • Potassium
  • Pramlintide
  • Procainamide
  • Prochlorperazine
  • Promethazine
  • Proton pump inhibitors
  • Pyridostigmine
  • Quetiapine
  • Quinidine
  • Rasagiline
  • Remifentanil
  • Revefenacin
  • Rivastigmine
  • Secretin
  • Sedating H1-blockers
  • Sincalide
  • Sodium Bicarbonate
  • Solifenacin
  • Sufentanil
  • Tacrine
  • Tapentadol
  • Tegaserod
  • Thiazide diuretics
  • Thioridazine
  • Thiothixene
  • Tiotropium
  • Tiotropium; Olodaterol
  • Tolterodine
  • Topiramate
  • Tramadol
  • Tricyclic antidepressants
  • Trifluoperazine
  • Trimethobenzamide
  • Triprolidine
  • Trospium
  • Umeclidinium
  • Umeclidinium; Vilanterol
  • Zonisamide
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