Internal CondomvsPill

A side-by-side comparison of two birth control methods — efficacy, cost, how they work, and who shouldn't use them.

Side-by-side comparison

Method	Internal Condom A soft pouch worn inside the vagina that blocks sperm and protects against STIs, available by prescription.	Pill No non-hormonal birth control pill is FDA-approved in the US. Ormeloxifene (centchroman) is approved and used in India.
Efficacy	79% typical use Least effective: under 90 out of 100 people successfully prevent pregnancy per year.	Limited evidence see details Limited evidence: no verifiable efficacy data available.
Cost	$0–$4 /per unit Insurance: Usually	Contact provider Insurance: Varies
Duration	Single use	Weekly pill (ongoing)
Reversibility	Reversible	Reversible
STI Protection	Yes	No
How it works	A soft, loose-fitting nitrile pouch lines the vagina and collects semen. The inner ring anchors it at the cervix and the outer ring stays outside the vaginal opening.	Ormeloxifene (centchroman) is a selective estrogen receptor modulator (SERM) that prevents pregnancy by inhibiting implantation of a fertilized egg in the endometrium. It does not suppress ovulation and does not contain estrogen or progestin. It is not FDA-approved in the US.
Prescription	Required Prescription required	Required Prescription required
Side effects	Mild irritation or discomfort Noise during use if not positioned correctly Slippage with incorrect insertion	Menstrual irregularities (delayed or altered periods; rates varied widely across studies, up to about 12%) Headache Nausea Abdominal discomfort Breast tenderness
Who shouldn't use this	Sensitivity to nitrile (rare)	Polycystic ovarian disease (PCOS) Recent history of jaundice or hepatic impairment Renal impairment Cervical hyperplasia or chronic cervicitis Pregnancy Hypersensitivity to ormeloxifene

Key differences

Internal Condom duration: Single use. Pill duration: Weekly pill (ongoing). Only Internal Condom protects against STIs. Internal Condom: costs $0–$4 per unit. Pill: Contact provider.