Test Copy of B doxy-PEP, Subscription

Morning-After Pill for STD Prevention

B doxy-PEP is a specialized prescription medication that can minimize the likelihood of contracting chlamydia, gonorrhea, and syphilis after you've had unprotected sex. It's meant to be taken within 3 days (72 hours) after condomless sex, but it is best to take it as quickly as possible after unprotected sex, so it can work to stop these infections before they start and cause problems.   

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3 courses
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How does B doxy-PEP work?

B doxy-PEP, short for Doxycycline Post-Exposure Prophylaxis, is a targeted strategy for potential STD prevention. Let's explore the components of this approach:

  • Doxycycline: This is an antibiotic commonly prescribed for various bacterial infections, including some sexually transmitted diseases (STDs) and infections (STIs).
  • Post-exposure: This term signifies the critical window following potential exposure to an STD, such as after engaging in unprotected sexual activity.
  • Prophylaxis: Prophylaxis refers to a preventive measure designed to ward off disease.

In essence, if you have participated in sexual activity where protection like condoms wasn't utilized, and you're apprehensive about potential exposure to certain STI bacteria, B doxy-PEP can be taken within 72 hours. It acts to inhibit the bacteria from establishing themselves in your system, thus serving as a precautionary measure against specific sexually transmitted infections.

B doxy-PEP Indications

B doxy-PEP should be taken with caution and specific considerations:

  • Avoid Consumption with: Dairy products, calcium supplements, antacids, or isotretinoin, as they may interfere with absorption.
  • Medication Interactions: If you are currently on anticoagulants such as Warfarin, PCNs, barbiturates, or antiepileptic medications like carbamazepine and phenytoin, consult with your healthcare provider before taking B doxy-PEP to avoid potential interactions.


B doxy-PEP is not formulated to protect against Monkeypox, HIV, herpes, or other viral infections. Currently, there is a lack of sufficient evidence to endorse the use of b doxy-PEP for STD prevention in individuals engaging in receptive vaginal sex. The CDC has acknowledged off-label usage of B doxy-PEP for STD prevention and is actively reviewing data to determine future clinical recommendations. Presently, the effectiveness data on B doxy-PEP is primarily applicable to gay and bisexual cisgender men and transgender women. Investigations involving cisgender women are ongoing, according to the CDC's guidance.

B doxy-PEP
Questions &

Dosage and Administration

  • Dosage: Follow the prescribed dosage as directed by your healthcare provider. Typically, 200mg of doxycycline must be taken within 72 hours of unprotected sexual activity.
  • Instructions: Take with a full glass of water and avoid lying down for at least 10 minutes afterward. Avoid taking with dairy, calcium, antacids, or isotretinoin, and consult your provider regarding other medication interactions.
  • Duration: The effect of the prophylaxis will depend on timely administration within the prescribed window.

Remember, this medication should always be taken under the guidance of a healthcare provider, and individual responses may vary. Following the instructions and adhering to medical advice is key to achieving optimal results with these products.

Common Questions

How effective is B doxy-PEP?

Clinical studies have shown that when taken within 24 hours, and no later than 72 hours, B doxy-PEP can decrease the likelihood of acquiring syphilis, gonorrhea, and chlamydia by roughly two-thirds in assigned male patients. Effectiveness data mainly apply to gay, bisexual cisgender men, and transgender women, with ongoing research for cisgender women.

Will B doxy-PEP contribute to antibiotic resistance?

A one-time dose of doxycycline has a low risk of causing resistance. Considering the global concern over antibiotic resistance in treating STDs, B doxy-PEP's role in hindering their spread is vital.

When is the right time to take B doxy-PEP?

Take B doxy-PEP as soon as possible, ideally within 24 hours, but not later than 72 hours after unprotected sexual activity.

When is it safe to engage in sexual activity after taking B doxy-PEP?

There is no set time frame for abstaining from sex after taking B doxy-PEP unless STD symptoms occur. In that case, seek an STD test.

Which STDs can B doxy-PEP prevent?

Evidence suggests that B doxy-PEP may prevent syphilis, gonorrhea, and chlamydia. Condoms remain the most effective prevention method.

What areB doxy-PEP's side effects?

Common side effects are mild. To alleviate stomach upset, take with food. Stay upright for 30 minutes after taking.

Is B doxy-PEP FDA approved?

The FDA and CDC are currently reviewing data. Despite the lack of official approval, the DPH in California has endorsed its use for high-risk individuals, with many clinics prescribing it.

Can B doxy-PEP be taken with emergency contraception?

Yes, emergency contraception can be combined with a B doxy-PEP order for simultaneous pickup at your pharmacy.