Plan B
utilized to address unplanned pregnancy following unprotected intercourse during the emergency window.
Strengths: 1.5mg
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Medicine details
- Conditions
- Alternative names
Levonelle
- Therapeutic class
Emergency Contraceptive
- Pharmacological class
Progestogen
- Contraindications
hypersensitivity to levonorgestrel
- Minor side effects
nausea; fatigue; headache
- Moderate side effects
lower abdominal pain; dizziness; breast tenderness
- Serious side effects
ectopic pregnancy — requires immediate medical attention
- Dosage forms
Tablet
- Administration route
Oral use
- Prescription status
P
- Manufacturer
Teva
- Onset Time
0–2 hours
- Duration
24–72 hours
- Storage instructions
Store at room temperature, protected from light and moisture.
- Drug interactions
st. john's wort; rifampicin
- Age restrictions
No age restriction, though counselling recommended for adolescents.
Precautions and warnings
does not provide protection against sexually transmitted infections; not a regular method of contraception; efficacy may be reduced in patients with high body mass index
Patient summary
utilized to address unplanned pregnancy following unprotected intercourse during the emergency window.
Mechanism of action
Levonorgestrel works primarily by preventing or delaying ovulation, making it difficult for the sperm to fertilise an egg. It does not disrupt an existing pregnancy.
Pregnancy and breastfeeding
Discuss with a healthcare provider if already pregnant. Not intended for regular use during breastfeeding.
Plan B
utilized to address unplanned pregnancy following unprotected intercourse during the emergency window.
Editorial Notes
- Active ingredient(s): Levonorgestrel
- Listed indication(s): Emergency Contraception
Available option
- 12 tablets - 1.5 mg14-1-5-mg-6166