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Invega ER (Paliperidone)

Prescription medicineOnly Available By Prescription

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What if I find a lower price with another pharmacy?

We guarantee the lowest price on all of our prescription products. If you find your medications cheaper at any other recognized licensed mail order pharmacy, we will not only match their price, we will beat it by 25% of the difference. It is our 125% price match guarantee!

Example: If you find a product on Canada Drugs Direct for $50.00 and find the same product for $40.00 at another mail order pharmacy, we will provide you with a $12.50 discount, bringing your total to $37.50.

To get the discount please make sure to mention the price match to the customer service team when they call to collect payment for your order. Or call toll free at 1-888-904-8467 to place the order through the phone.

Terms & Conditions of Program

  • Guaranteed lowest price is only valid at the time of sale.
  • We will only match the current advertised price.
  • Products must be identical and in stock at the time of placing an order with a licensed mail order pharmacy. The must be a member of CIPA (Canadian International Pharmacy Association).
  • Products must be authentic in brand and size (same manufacturer, same country of manufacture, same pack size, same strength and same quantity).
  • Products must be new. We cannot match the price of any used, short expiry or expired product.
  • Price match can only be issued over the phone with our customer service team
What is a Generic Drug?

A generic drug is a copy of the brand-name drug with the same dosage, safety, strength, quality, consumption method, performance, and intended use. Before generics become available on the market, the generic company must prove it has the same active ingredients as the brand-name drug and works in the same way and in the same amount of time in the body.

The only differences between generics and their brand-name counterparts is that generics are less expensive and may look slightly different (eg. different shape or color), as trademarks laws prevent a generic from looking exactly like the brand-name drug.

Generics are less expensive because generic manufacturers don't have to invest large sums of money to develop a drug. When the brand-name patent expires, generic companies can manufacture a copy of the brand-name and sell it at a substantial discount.


Invega ER is a prescription antipsychotic medication that is used treat schizophrenia and schizoaffective disorder, as well as being prescribed for bipolar disorder and other mental or mood disorders less frequently. The active ingredient in the medication, Paliperidone, works to change the effect of chemicals in the brain to limit hallucinations, delusional thoughts, disordered thinking and other schizophrenia symptoms. It may also be used as an adjunct to other medications, and it is important that patients continue to take Invega exactly as directed in order to see significant improvements.

Fact Table







Legal status


Chemical Name


Elimination half-life

23 hours

Dosage (Strength)

3mg, 6mg, 9mg


Consult Doctor



Protein binding


PubChem CID






ATC code






Routes of administration

By mouth


The standard Invega dosage is to take either Invega 3mg or Invega 6mg once daily, with or without food. Your doctor will determine which dosage is most appropriate for you based on your age, medical condition, and response to treatment.


The active ingredient in Invega ER is Paliperidone.


Tell your doctor if you have any history of liver disease, kidney disease, heart disease, seizures, low white blood cell count, Parkinson's disease, dementia, esophagus or stomach / intestinal blockage disorders, eye problems like cataracts or glaucoma, diabetes, high cholesterol and triglyceride levels, or sleep apnea before beginning on Invega ER.

This medication may cause a condition that causes QT prolongation, a heart rhythm disorder that may case irregular heartbeat or other symptoms that may require medical attention.

It is best to avoid excessive alcohol consumption and all recreational drug use while taking Invega ER.

Invega ER may make you dizzy or drowsy.

This medication may make you less able to perspire, which may increase the risk of heat stroke for some people depending on the environment they are in.

Women who are pregnant or breast feeding should only use Invega ER if their doctor approves it.


There is the possibility of drug interaction risks between Invega ER and other Rx medications, including amiodarone, chlorpromazine, moxifloxacin, quinidine, sotalol, procainamide, thioridazine, opioid pain or cough relievers like codeine and hydrocodone, drugs for sleep or anxiety like alprazolam and lorazepam, muscle relaxants like carisoprodol and cyclobenzaprine and antihistamines containing cetirizine or diphenhydramine. Tell your doctor of all medications you are currently taking before getting a prescription and proceeding to buy Invega ER.

Side Effects

Side effects from use of Invega 3mg or Invega 6mg are uncommon, but some users may experience drowsiness, dizziness, light headedness, drooling, stomach or abdominal pain, weight gain, or exhaustion. If these side effects occur you should discontinue use and meet with your doctor again to discuss schizophrenia treatment medication options.

IMPORTANT NOTE: The above information is intended to increase awareness of health information and does not suggest treatment or diagnosis. This information is not a substitute for individual medical attention and should not be construed to indicate that use of the drug is safe, appropriate, or effective for you. See your health care professional for medical advice and treatment.

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