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.

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Prescription Required

  • Product Details


    Histantil is a prescription antihistamine medication used to counter allergic reactions, reduce nausea, prevent motion sickness or vomiting, or for treating inflammatory pain after surgery. The active ingredient in the medication – Promethazine Hydrochloride – is a histamine H1 antagonist that suppresses the activity of mesolimbic dopamine, alpha adrenergic, muscarinic, and NMDA receptors. A Histantil tablet 50mg may also be used to induce sleep or for anxiety / tension relief depending on individuals cause factors, but the most common prescription case will be for severe allergy relief when OTC antihistamines are insufficient.

    You can buy Histantil online with a prescription, and your best price on it will be when you order medication online from Canada Pharmacy.


    Standard dosage is to take 1 Histantil tablet 50mg at the first sign of symptoms depending on condition being treated

    For inflammatory pain after surgery medication should be taken at earliest convenience following the procedure and then taken every 6 hours as needed until pain subsides

    Tablet should be taken with a full glass of water, and can be taken with or without food


    The active ingredient in Histantil is Promethazine Hydrochloride


    Tell your doctor of all allergies you have or any other medications you are taking at this time before starting on Histantil

    Limit alcohol consumption while using this prescription antihistamine

    Medication use may increase your sun sensitivity, and using sun protection is advisable if you are going to be in direct sunlight with exposed skin

    Do not exceed dosage regulations and keep medication in a cool, dry place

    Be aware of expiry date for medication


    There is the possibility of negative drug interaction risks between Histantil and other Rx or OTC medications, including Atropine / Belladonna / Dicyclomine / Ipratropium / Isocarboxazid / Lithium / Oxybutynin / Propranolol / Warfarin

    Tell your doctor of all medications you are currently taking before receiving a prescription and proceeding to buy Histanil online

    Side Effects

    Histantil side effects are a possibility, and some users may experience drowsiness, shallow breathing, lightheadedness, confusion, agitation, hallucinations, seizure, accelerated or decelerated heartbeat, jaundice, uncontrolled muscle movements in the face, fever, chills, sore throat, mouth sores, sweating, or tremors. If side effects are experienced you many want to discontinue use and talk to your doctor again regarding prescription antihistamine medication alternatives.

    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.

    Product Code : 13732

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