Combined pill
Erin pills: price, side effects and how to take them
Erin (drospirenone 3 mg + ethinylestradiol 30 mcg)
Quick answer
Erin (drospirenone 3 mg + ethinylestradiol 30 mcg) is a combined pill with the same formula and 21-tablet pack as Yasmin and Liza.
At ₱700 a pack it was the lowest priced of the three when we checked. It needs a reseta (Prescription. All birth control pills need one in the Philippines.).
Key facts
- Generic name
- drospirenone 3 mg + ethinylestradiol 30 mcg
- Type
- Combined pill (estrogen + progestin)
- Pack
- 21 tablets: 21 hormone, then a 7-day break
- Prescription
- Required in the Philippines
- Price this month
- From ₱700 a pack
Erin has the same drospirenone (A progestin used in Yaz, Yasmin and their same-formula brands.) and ethinylestradiol doses as Yasmin by Bayer. Rose Pharmacy listed it at ₱700, and Find My Method gives the same figure.[src][src] Liza starts at ₱786.75, and Yasmin had no current retail listing we could find.
We did not find Erin on Watsons, so availability may depend on where you buy. Our research does not name Erin's maker. If you want the same progestin with less estrogen, that is Yaz (drospirenone + ethinylestradiol 20 mcg), a different dose and pack.
Erin price in the Philippines
Prices checked October 2026. Every pharmacy below requires a prescription.
| Retailer | Pack | Price | Checked |
|---|---|---|---|
| Rose PharmacyPrescription required | 21 tablets | ₱700.00 | October 2026 |
| Mercury Drug | No public online price | [TODO: verify] | |
| Southstar Drug | No public online price | [TODO: verify] |
How to take Erin
One tablet a day at about the same time for 21 days, then 7 days off; your withdrawal bleed (The bleed during the inactive or break days of a pill pack. It is not a true period.) usually comes in the break. Start the next strip on day 8, even if still bleeding. No inactive tablets, so put the restart day in your phone; a late restart counts like missed pills.[src]
When to start: WHO says a combined pill can start within the first 5 days of your period with no extra protection, or any other day if you are reasonably sure you are not pregnant, with condoms for the first 7 days.[src]
If you miss a Erin pill
Erin is a 30 to 35 mcg combined pill. If you miss 1 or 2 hormone pills, take one as soon as you remember and carry on: WHO says there is little or no risk of pregnancy. If you miss 3 or more in a row, take one now, use condoms for 7 days, and if it happened in the last hormone week, skip the break or inactive pills and start a new pack.
If you had sex in the last 5 days and missed pills, talk to a doctor today about emergency options. If unsure, talk to a doctor or pharmacist.
Open the Missed Pill HelperErin side effects and what Filipinas worry about
Early spotting, sore breasts, nausea, headaches and mood changes are possible in the first 3 months and usually settle.[src] Erin has the small clot risk of all combined pills and is not for smokers 35 and over or people with migraine with aura.[src]
Nakakataba ba ang Erin?
No large effect, per a Cochrane review of placebo-controlled trials of combined pills,[src] and the NHS says there is no evidence the pill causes weight gain.[src]
Delikado ba ang pills?Are pills dangerous? What about blood clots?
The risk of a blood clot on the combined pill is real but small. Combined pills are not suitable for smokers 35 and over, people with migraine with aura, a past clot, high blood pressure and some other conditions. Chest pain, leg swelling or sudden breathlessness are emergencies.
May kamahalan ang pills.Pills are too expensive.
Prices range widely, and several cheaper brands have the exact same formula as the expensive ones. Pills, injectables, implants and IUDs are also free at public health facilities, subject to supply.
Read moreWho should not take Erin
Who should not take it
Combined pills may not be safe for you if:
- You smoke and are 35 or older
- You get migraine with aura (flashing lights or zigzags before a headache)
- You have had a blood clot in a leg or lung, or a stroke
- You have high blood pressure
- You gave birth less than 6 weeks ago and are breastfeeding
- You have some heart, liver or diabetes conditions
Combined pills may not be safe for you. Talk to a doctor. A progestin-only pill, implant or IUD is often an option instead.
Common side effects
Spotting between periods, sore breasts, nausea, headaches and mood changes, mostly in the first 3 months. Most settle within about 3 months. More on side effects.
When to get urgent help
Go to an emergency room now for chest pain, sudden breathlessness, coughing blood, a painful swollen leg, a sudden severe headache, vision changes or weakness on one side.
Check the product is registered
Buy only from licensed pharmacies. You can look up a product on the FDA Philippines verification portal.
Same formula, different price
Drospirenone 3 mg + EE 30 mcg. Same active ingredients and dose; pack and inactive tablets can differ.
Three legal routes
Get a prescription
Erin needs a prescription in the Philippines. Pick the route that suits you. For adults 18 and over.
Free at a health center
Barangay health centers, RHUs, DOH hospitals and Likhaan. Subject to supply.
See an OB-GYN in person
Clinic visit, prescription in hand. Bring it to any licensed pharmacy.
Online consult
A licensed doctor by video or chat. From ₱700 on some platforms.
Online consult options
For adults 18 and over. Fees are set by each provider and can change.
Erin FAQ
Is Erin the same as Yasmin?
Yes. Erin has drospirenone 3 mg + ethinylestradiol 30 mcg in a 21-tablet pack, the same as Yasmin and Liza.
Why is Erin cheaper than Liza?
It is a different brand of the same formula. Erin was from ₱700 and Liza from ₱786.75 at the pharmacies we checked. The strength is the same.
Saan mabibili ang Erin pills?
Nakita namin ito sa Rose Pharmacy. Kailangan ng reseta. Kung wala sa botika mo, ang Liza ay parehong formula.
Can I switch from Liza to Erin?
Usually yes, since the formula is the same. Ask your pharmacist how to time it so the 7-day break does not get longer.
Do I need a prescription for Erin?
Yes. Erin is a prescription medicine in the Philippines and Rose Pharmacy lists it under prescription contraceptives.
This guide is for information. Talk to a doctor before starting, stopping or switching birth control.
Sources
- Family Planning: A Global Handbook for Providers, WHO and Johns Hopkins CCP
- Managing missed pills (Family Planning Handbook), WHO and Johns Hopkins CCP
- Combined pill: risks and side effects, NHS
- Combined pill: who can and cannot take it, NHS
- Combination contraceptives: effects on weight (Gallo et al.), Cochrane / PubMed
- Prescription Pharmacy: Contraceptive Agents, Rose Pharmacy
- Contraceptive pill in the Philippines, Find My Method
- Oral contraceptives category, Watsons PH