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Trichomonas Vaginalis (TV)

Trichomoniasis (or TV infection) is a condition which can result in vaginitis and urinary pain. It is caused by a parasite called trichomonas vaginalis which can be transmitted through unprotected sex.

  1. Affects around 6,000 people a year in the UK
  2. Up to half of those infected may display no symptoms
  3. Simple to treat with antibiotics

Patients who have tested positive for this infection can buy TV treatment online. To begin your consultation, click ‘buy now’ and take our questionnaire.

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Trichomonas vaginalis (TV) treatment

Trichomonas vaginalis (TV) treatment

  1. First-line for trichomoniasis
  2. Effective at fighting off infection
  3. Twice daily dose

Trichomoniasis is caused by the activity of a small parasitic organism called Trichomonas Vaginalis (TV), and is characterised by a number of symptoms. In women, these might be symptoms commonly associated with vaginitis, such as discharge, pain, inflammation or irritation; whereas men may experience pain or slight discharge during urination. The parasite is spread via unprotected sex in most cases, but it can be transferred through the use of shared sex toys as well.

The condition is not as widespread as other STIs, and is only thought to affect around 6,000 people every year in the UK. However, it is still important if you think you might have the condition to get tested and, if positive, treated, as it can increase your susceptibility to other STIs, such as HIV.

This illness is treated in a similar way to most bacterial infections; with antibiotic medicine. This is usually issued in the form of Metronidazole, which is a form of nitromidazole antibiotic. It is often prescribed as a two-dose-a-day treatment for around 5—7 days.

Metronidazole kills the parasite by hindering its capacity to repair itself. In order to maintain its DNA structure, TV requires the function of nucleic acid. The drug restrains the production of this acid, and compromises the DNA structure of the parasite. This disables the progress of the organism, which then ceases to function and dies.

You should get testing if you have any of the above symptoms, or think you may have come into contact with TV. Testing facilities are available at sexual health clinics, and some GPs may offer these too. If you prefer to self-test at home, you can order an STI test kit from our site here.

To get your TV treatment online, you can order it through our consultation service if you have received a positive test result. A clinician will review your prescription request and, once approved, issued at our dispensed pharmacy. Most orders are delivered in one working day.

Sex after trichomonas vaginalis (TV)

After a course of treatment for TV is finished, a second test should be taken. This should be done three weeks after treatment, to ensure all traces of the bacteria are gone. Once a second test confirms no presence of TV, you can then practice sex again.

Page last reviewed:  26/04/2022
Types of Treatment

Types of Treatment

Trichomonas vaginalis does not tend to go away on its own, making treatment necessary. This is usually issued in the form of antibiotic medicine, called Metronidazole. This is a generic tablet treatment.

How do they work?

Most antibiotics tend to work in a similar way; by disabling an infections ability to sustain itself. Bacteria and parasites will usually produce chemicals which allow them to function, and maintain cell integrity.

In the case of Trichomonas Vaginalis, the active ingredient in Metronidazole restricts the activity of nucleic acid, which prevents the parasite from maintaining its DNA structure. The offending parasite is then unable to repair itself and continue functioning, and subsequently dies.

What are the side effects?

Among the most common side effects associated with Metronidazole are headaches, dizziness and facial flushing. Please consult the leaflet provided with the product for more information.

Can I take them with other medications?

It depends on what other medications you're using. Metronidazole may affect the functionality of some medicines including lithium, or anti-coagulants. See the leaflet for more information, and always inform your prescriber of any other treatments you are currently taking.

Page last reviewed:  26/04/2022
Question and Answers

How do I know if I have TV?

Getting tested is the only way to be sure. You can access testing services through your local GP or sexual health clinic, or order a test kit online through us.

Does TV always cause symptoms?

No. Up to half of cases may display no symptoms.

When can I have sex again? 

After a second test confirms no presence of TV. A second test should be taken three weeks after treatment has concluded to ensure all traces of the infected bacteria have left the body. 

What does treatment involve?

Metronidazole, an antibiotic, is the first-line option. If you have tested positive for TV, you can buy Metronidazole online through our UK pharmacy service. Take our questionnaire to have your case reviewed by our prescriber. Medications are shipped in secure packaging by next-day delivery.

Page last reviewed:  26/04/2022

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This content was reviewed by a clinician on

26 April 2022
dr daniel

Dr Daniel Atkinson

(GP Clinical Lead - GMC No. 4624794) 26 April 2022
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