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Periactin

Cyproheptadine

Developed to mitigate severe allergic reactions and stimulate appetite to support healthy weight gain and alleviate itching.

Active ingredient
Cyproheptadine
Route
Oral use
Form
Tablet
Strengths
4mg

You will receive a quality generic equivalent of Periactin, depending on stock.

Prescription and consultation requirements for Periactin vary by destination and are determined by the fulfilment partner.

Periactin details

Alternative names
cyproheptadine
Therapeutic class
Piperidine Antihistamine
Pharmacological class
First-Generation Antihistamine
Known off-label uses
appetite stimulation; migraine prophylaxis; serotonin syndrome
Minor side effects
drowsiness; dry mouth; dizziness
Moderate side effects
increased appetite; weight gain; constipation
Serious side effects
severe blood dyscrasias, requires immediate medical attention
Dosage forms
Tablet
Administration route
Oral use
Supply category
Prescription-only medicine (POM)
Originator
Merck
Onset Time
30–60 minutes
Duration
4–6 hours
Storage instructions
Store below 25°C.
Drug interactions
MAO Inhibitors; Alcohol; CNS Depressants
Age restrictions
Contraindicated in newborns and premature infants.
Contraindications

narrow-angle glaucoma; bladder neck obstruction; concurrent MAO inhibitor use; newborns

Patient summary

developed to mitigate severe allergic reactions and stimulate appetite to support healthy weight gain and alleviate itching.

Mechanism of action

Antagonises H1 histamine receptors and central 5-HT2 serotonin receptors, blocking allergic and satiety signaling.

Pregnancy and breastfeeding

TGA Category B: Safe based on animal models. Breastfeeding: May suppress lactation.

What you will receive

Periactin is the originator brand name, made by Merck. We use it to identify the medicine and are not affiliated with Merck.

  • The fulfilment partner confirms whether the exact brand or an equivalent containing Cyproheptadine is offered.
  • The offered brand, manufacturer and dispatch location depend on the product, destination and partner warehouse.
  • Check the final product details at checkout before confirming an order.

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