Can Norina Tablets Delay Menstruation? A Guide for Women - Obstetrics and Gynecology

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The last menstrual period was from May 10 to May 17, with a cycle of approximately 25 days, so the next expected period would be around June 5.
If starting to take Norina Tablets 5mg from May 4, as per the pharmacist's instructions to take two tablets daily (one in the morning and one in the evening), will it be effective in time? If there is already slight bleeding, can the medication still be taken?

Nìmíng, 40~49 year old female. Ask Date: 2024/06/03

Dr. Cao Guotao reply Obstetrics and Gynecology


Hello, it may be too late, but please continue taking your medication.
If your period starts, you can stop taking it.
Wishing you good health.

Reply Date: 2024/06/03

More Info


Norina Tablets, which contain the active ingredient norethisterone, are often prescribed to help manage menstrual irregularities, including the delay of menstruation. This medication is a synthetic form of the hormone progesterone and is commonly used for various gynecological issues, including amenorrhea (absence of menstruation) and to delay periods for specific reasons, such as travel or events.

In your case, you mentioned that your last menstrual period was from May 10 to May 17, with a typical cycle of about 25 days. This means that your next expected period would be around June 5. If you start taking Norina Tablets on May 4, you would be taking the medication for a few days before your expected period. Generally, Norina Tablets are taken for a duration of 5 to 10 days to effectively delay menstruation. The usual dosage is 5 mg taken two to three times a day, as directed by your healthcare provider.

Regarding your question about whether starting the medication on May 4 would be sufficient to delay your period, it is likely that you may not have enough time to fully delay your menstruation if your period is expected to start on June 5. The medication typically needs to be taken for a few days before the desired effect can be achieved. However, if you experience light bleeding while on the medication, it is advisable to continue taking it as directed. Light bleeding can occur due to hormonal fluctuations, and stopping the medication may not be beneficial.

It is important to note that while Norina Tablets can effectively delay menstruation, they may not be suitable for everyone, and potential side effects should be considered. Common side effects of Norina Tablets may include nausea, headaches, breast tenderness, and changes in weight. If you notice significant weight gain or other concerning symptoms, it is advisable to consult your healthcare provider.

In terms of safety, Norina Tablets do not contain components that act as contraceptives, meaning they do not prevent pregnancy. If you are sexually active while taking this medication, and if you are not using any other form of contraception, there is a possibility of becoming pregnant. If you are trying to conceive, it is essential to discuss this with your healthcare provider, as they may recommend alternative treatments or adjustments to your medication regimen.

In summary, while Norina Tablets can be effective in delaying menstruation, starting the medication on May 4 may not provide enough time to delay your period until June 5. If you experience light bleeding, it is generally recommended to continue taking the medication. Always consult with your healthcare provider for personalized advice and to address any concerns regarding side effects or the potential for pregnancy while taking this medication.

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