Cogentin Injection (Benztropine)

Cogentin Injection

(Brand Option)

Prescription RequiredPrescription Required

This brand medication is not available at the moment.


(Generic Alternative)

Prescription RequiredPrescription Required
FormulationFormulation: Ampules
Select Dosage

Select Quantity


Norton Shopping Guarantee

Cogentin, also known as Benztropine, is a medication used to treat symptoms associated with Parkinson's disease and involuntary movements caused by certain psychiatric drugs (antipsychotics).

Benztropine belongs to a class of medications called anticholinergics, which work by blocking the action of a natural substance called acetylcholine.

By blocking acetylcholine, Cogentin helps decrease muscle stiffness, sweating, and the production of saliva. It can also improve walking ability in individuals with Parkinson's disease.

Anticholinergics like Cogentin can be effective in stopping severe muscle spasms in the back, neck, and eyes that may be caused by psychiatric drugs. They can also reduce side effects such as muscle stiffness and rigidity (known as extrapyramidal signs or EPS).

Cogentin is not helpful in treating movement problems caused by tardive dyskinesia and may actually worsen them.

Cogentin should not be used in children younger than 3 years of age.


  • Before using, inspect the injection solution for particles or discoloration. If either is present, discard the medication and don't use it.
  • Use Cogentin exactly as prescribed by your healthcare provider, including dosage, frequency, and injection method (intravenous or intramuscular). The usual dosage ranges from 2 to 4 times a day or a single dose at bedtime.
  • To minimize side effects, your healthcare provider might start you on a low dose and gradually increase it as needed.
  • Use Cogentin consistently to experience the full benefits. Try to inject it at the same time(s) each day for better adherence.
  • If using Cogentin for side effects from another medication, your healthcare provider might recommend taking it regularly or only as needed. For Parkinson's disease, your healthcare provider might adjust the dosage of other medications like levodopa alongside Cogentin.
  • Tell your healthcare provider if you experience a decrease in the effectiveness of Cogentin over time.


  • Don't increase your dose, use it more often, or use it for longer than prescribed by your healthcare provider.
  • Don't suddenly stop taking Cogentin, as it can worsen your condition. Follow your healthcare provider's instructions for gradually reducing the dose when necessary.
  • Don't hesitate to tell your healthcare provider if your condition doesn't improve or worsens after using Cogentin for a while.

Common Side Effects:

  • Nausea
  • Vomiting
  • Dry mouth
  • Blurred vision
  • Insomnia
  • Drowsiness
  • Tiredness
  • Little or no urination
  • Mild skin rash
  • Metallic taste in the mouth
  • Oily skin
  • Vaginal itching or discharge
  • Muscle pain
  • Sore throat
  • Abdominal pain
  • Diarrhea
  • Constipation
  • Difficulty talking or swallowing due to dry mouth
  • Loss of appetite and weight due to severe dry mouth
  • Red, scaly skin
  • Bloating
  • Difficulty or painful urination
  • Decrease in urine volume
  • Diarrhea
  • Confusion
  • Aggressive and violent behavior
  • Forgetfulness
  • Burning while urinating
  • Difficulty or painful urination

Serious Side Effects:

  • Signs of an allergic reaction: hives, difficulty breathing, swelling of the face, lips, tongue, or throat
  • Uncontrolled muscle movements
  • Fast heartbeats
  • Muscle weakness
  • Tachycardia
  • Paralytic ileus
  • Severe constipation

This is not an exhaustive list, and other side effects may occur. If you experience any unusual or severe side effects while taking Cogentin injection, contact your healthcare provider for medical advice.

Inform your healthcare provider if you are allergic to benztropine or any ingredients in Cogentin Injection.

Disclose any pre-existing medical conditions to your healthcare provider before using Cogentin Injection, especially:

  • Eye problems: Glaucoma (angle-closure type)
  • Breathing problems: Asthma, emphysema
  • Digestive issues: Diarrhea (infectious), chronic constipation, ileus, ulcerative colitis, bowel obstruction
  • Heart problems: Angina, heart attack, heart failure, irregular heartbeat, high/low blood pressure
  • Urinary problems: Blockage of the bladder, difficulty urinating (enlarged prostate, neurogenic bladder)
  • Other conditions: Kidney disease, liver disease, mental/mood problems (anxiety, dementia, psychosis), myasthenia gravis, autonomic neuropathy, seizures, stomach problems (acid reflux, hiatal hernia, ulcer), stroke, hyperthyroidism, substance use disorder

Cogentin Injection may cause dizziness, drowsiness, or blurred vision. Avoid driving, operating machinery, or activities requiring alertness or clear vision until effects subside. Limit alcohol and marijuana use.

Cogentin Injection may decrease saliva production, increasing gum and tooth problems. Practice good dental hygiene and schedule regular dental checkups.

Cogentin Injection may decrease sweating, raising the risk of heatstroke. Avoid hot weather activities, strenuous exercise, and hot tubs. Stay hydrated, dress lightly, and seek cool environments if overheated. Seek medical help for persistent fever, mental changes, headache, or dizziness.

Brand Name:

Cogentin Injection

Generic name:


Other Names:

Benztropine Ampules

Strength(s): 1mg/mL
Quantities Available: 10


Important Information
The information above for Cogentin Injection (Benztropine) was provided to by third parties. In no way should this information substitute for the advice of a physician. Consult a doctor or qualified health care professional if you have any medical concerns. widget logo