


We offer competitive pricing on all our medications. Find a lower price? We'll match it from any verified Canadian online pharmacy! Know More

We offer competitive pricing on all our medications. Find a lower price? We'll match it from any verified Canadian online pharmacy! Know More
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Select the prescribed dosage and quantity, then proceed to checkout.
Sign in or create a new account.
Upload your prescription.
Complete your purchase by processing the payment.
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Periactin (cyproheptadine) is an antihistamine medication available in 4 mg tablets, primarily used to treat allergies, itching, and migraines. It works by blocking histamine & serotonin receptors, reducing allergy symptoms, and increasing hunger. Common side effects of Periactin 4 mg tablets include drowsiness, dry mouth, dizziness, and increased appetite. Periactin dosage varies by age and condition, typically ranging from 2 to 4 mg, taken 2 to 3 times daily.
Periactin 4 mg tablets are not recommended for children under 2, pregnant/breastfeeding individuals, or those with glaucoma, prostate issues, or bowel obstructions. Avoid alcohol and driving until the effects are known, and store tablets at room temperature. For convenient access, you can choose licensed pharmacies to order Periactin from Canada.
| Generic Name | Cyproheptadine |
| Brand Name | Periactin |
| Forms | Tablets |
| Strengths Available | 4 mg |
| Packaging | NA |
| Requires Prescription | No |
| Ships to the USA | Yes |
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Periactin 4 mg tablets are used to:
Dosage of Periactin for Allergies & Pruritus
Dosage of Periactin for Appetite Stimulation / Weight Gain
Dosage of Periactin for Migraine Prevention & Vascular Types of Headaches
Dosage of Periactin for Cold-Induced Hives or Skin Reactions
When you buy Periactin online, consider the following administration guidelines:
Periactin 4 mg (cyproheptadine hydrochloride) works by blocking certain natural substances in your body, primarily histamine and serotonin. As an antihistamine, it helps reduce allergic symptoms like a runny nose, itching & sneezing, and by preventing histamine from binding to its receptors. At the same time, its antiserotonin properties play a role in stimulating appetite and managing conditions like serotonin syndrome by acting on receptors in the brain, particularly in the hypothalamus. Additionally, its mild anticholinergic effects can contribute to drowsiness and drying up nasal secretions.
Common Periactin side effects may include:
Serious side effects (rare) of Periactin 4 mg tablets are:
Note: Contact your healthcare provider or doctor if you experience any serious symptoms or unusual changes.
Consider the following medication warnings when you order Periactin from Canada:
If you plan to buy Periactin from Canada, follow these precautionary measures:
If you miss a dose of the Periactin 4 mg tablet, take it as soon as you remember. However, if it’s almost time for your next scheduled Periactin dose, you can skip the missed one. Do not double the dose of Periactin 4 mg tablets to compensate for missed doses.
In case of an overdose of Periactin 4 mg, symptoms may include extreme drowsiness, confusion, dry mouth, hallucinations, dilated pupils, rapid heartbeat, flushing, or even seizures, especially in children. If you suspect a Periactin overdose, contact a poison control center at 1-800-222-1222.
People often order Periactin online and follow these storage guidelines:
Periactin can interact with many medications. Here’s what to watch for:
Depending on your condition (e.g., allergies, appetite stimulation, migraines), here are some Periactin alternatives:
At Polar Bear Meds, we’re committed to making medications like Periactin more accessible and affordable for USA patients. Our prices are significantly lower than typical USA pharmacy retail rates without compromising on safety or quality. Every order is sourced exclusively from licensed and trusted pharmacies. We offer discreet, trackable shipping to all USA states, along with refill support for ongoing treatment. Our friendly customer service team is here to help you.
Get Periactin delivered straight from Canada to your doorstep in the USA. You can also save more by using the coupon code “WELCOMEPB10” for 10% off on your first order. There are no hidden handling or processing fees, as we believe in complete transparency. Looking to save even more? Join our referral program & earn a $20 credit every time you refer a friend or a family member. Your referral will also receive a $20 credit, so everyone wins. Additionally, after every 10 verified customers you refer to, you'll receive a $100 credit in your account as a thank-you for spreading the word.
AtPolar Bear Meds, your safety is our priority. Every order is dispensed from a fully licensed Canadian pharmacy following strict standards for quality, security, and patient care. To conveniently buy Periactin from Canada at a substantial cost, call us at 1-888-779-2193 toll-free.

Dr. Jackson Miller is a board-certified medicine physician & hospitalist. He is a healthcare professional with a strong background in patient care. With years of experience and a patient-first approach, he believes the foundation of good health is a patient who feels informed and empowered. He contributes to medical content review, drawing on his background in clinical practice and patient education. He focuses on presenting health information in a clear, accurate, and accessible way to help readers make informed decisions. His work emphasizes clarity, evidence-based guidance, and understandable explanations of medical topics.
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