Periactin
Intended to manage allergic reactions, formulated to alleviate itching and related symptoms by blocking histamine and serotonin receptors.
- Category
- Allergy Relief
- Active ingredient
- Cyproheptadine
- Supply
- OTC
- Route
- Oral use
- Form
- Tablet
- Strengths
- 4mg
Periactin details
- Conditions
- Allergic Rhinitis · Urticaria
- Therapeutic class
- Antihistamine
- Pharmacological class
- First-Generation Antihistamine
- Known off-label uses
- appetite stimulation
- Precautions and warnings
- may cause significant drowsiness; use with caution when driving
- Minor side effects
- drowsiness; dry mouth; dizziness
- Moderate side effects
- blurred vision; constipation; urinary retention
- Dosage forms
- Tablet
- Administration route
- Oral use
- Supply category
- General sale, no prescription needed
- Manufacturer
- MSD
- Onset Time
- 15–30 minutes
- Duration
- 4–6 hours
- Storage instructions
- Store below 25°C in a dry place.
- Drug interactions
- alcohol; MAO inhibitors; sedatives
- Age restrictions
- Use with caution in children.
- Pregnancy and breastfeeding
- Pregnancy: avoid. Breastfeeding: avoid.
Contraindications
hypersensitivity to cyproheptadine; narrow-angle glaucoma; urinary retention; elderly; debilitated patients
Serious side effects
anaphylaxis, requires immediate medical attention; seizures, requires immediate medical attention
Patient summary
Intended to manage allergic reactions, formulated to alleviate itching and related symptoms by blocking histamine and serotonin receptors.
Mechanism of action
Cyproheptadine is an antihistamine and antiserotonergic agent. It competes with histamine and serotonin at receptor sites, thereby reducing inflammation and allergic symptoms, while also possessing significant anticholinergic effects.
Where this medicine is registered
- Singapore
- Hong Kong
- Thailand
- Malaysia
- Philippines
- Indonesia
- Taiwan
- South Korea
- Japan
- Australia
- New Zealand
- UAE
- South Africa
About Periactin
Periactin is the established brand name for cyproheptadine, a histamine antagonist used to treat symptoms of allergic rhinitis and urticaria. Produced by MSD, the medication serves as a reliable option for managing allergic responses. It is supplied as a 4mg tablet, offering a straightforward way to address symptoms throughout the day.
Buying Periactin online
Periactin is registered across 14 markets including Taiwan, South Korea and Japan, with availability also in the UAE, Singapore and Hong Kong. As one of the most ordered therapies for allergies across the region, it is often secured through online services. Generic cyproheptadine, largely produced in India, offers a far more affordable option than the original brand for expats and travellers distant from a well stocked pharmacy.