Decapryn
Decapryn is a brand name for doxylamine succinate, a first-generation antihistamine. It works by blocking histamine-1 receptors to relieve allergy symptoms and crosses the blood-brain barrier, causing significant drowsiness, which is why it is also used as a short-term sleep aid.
Dosage by Body Weight
Adults and adolescents 12 years and older typically take 12.5 mg to 25 mg every 4 to 6 hours as needed for allergies, or 25 mg once daily before bed for sleeplessness. Use in young children is generally not recommended and requires direct medical supervision.
- Body Weight
- Below 5 kg
- Dose
- Not recommended
- Frequency
- Do not use
- Tracking Notes
- Contraindicated in newborns and young infants due to the risk of severe side effects such as respiratory depression.
- Body Weight
- 5-7 kg
- Dose
- Not recommended
- Frequency
- Do not use
- Tracking Notes
- Consult a pediatrician. OTC cough, cold, and allergy medications are not recommended for young children.
- Body Weight
- 8-10 kg
- Dose
- Not recommended
- Frequency
- Do not use
- Tracking Notes
- Do not administer to toddlers without direct instruction and dosage guidance from a qualified pediatrician.
- Body Weight
- 11-15 kg
- Dose
- Consult physician
- Frequency
- Use only if prescribed
- Tracking Notes
- Safety and efficacy have not been established for self-medication in children under 6 years of age.
- Body Weight
- 16-20 kg
- Dose
- Consult physician
- Frequency
- Use only if prescribed
- Tracking Notes
- Pediatric dosing for allergy symptoms should be carefully calculated and monitored by a doctor.
| Body Weight | Dose | Frequency | Tracking Notes |
|---|---|---|---|
| Below 5 kg | Not recommended | Do not use | Contraindicated in newborns and young infants due to the risk of severe side effects such as respiratory depression. |
| 5-7 kg | Not recommended | Do not use | Consult a pediatrician. OTC cough, cold, and allergy medications are not recommended for young children. |
| 8-10 kg | Not recommended | Do not use | Do not administer to toddlers without direct instruction and dosage guidance from a qualified pediatrician. |
| 11-15 kg | Consult physician | Use only if prescribed | Safety and efficacy have not been established for self-medication in children under 6 years of age. |
| 16-20 kg | Consult physician | Use only if prescribed | Pediatric dosing for allergy symptoms should be carefully calculated and monitored by a doctor. |
Formulation
Purpose
Used to treat symptoms of allergic rhinitis (like sneezing, runny nose, itchy throat, and watery eyes) and occasionally used as a short-term sedative or sleep aid.
Generic Name
Doxylamine succinateScheduled Drug
No. This medicine is generally not treated as a scheduled/prescription-only drug in common consumer references, but local rules may vary.