Cystitis Medications: Differences Between OTC and Prescription (Antibiotic) Drugs, and How to Treat

Frequent urination, a stinging pain when urinating, and a feeling of not being able to empty the bladder completely—these symptoms may be signs of cystitis. Cystitis is a relatively common condition and is known to occur particularly often in women. This article provides a neutral and general overview of cystitis symptoms, causes, whether over-the-counter (OTC) medications are appropriate, cases requiring antibiotics, self-care practices you can do at home, and guidelines for when to seek medical attention. Please note that this article is not intended for diagnostic purposes, and it is crucial to have symptoms evaluated by a medical professional.

Main Symptoms of Cystitis

Cystitis, an inflammation of the inner lining of the bladder, manifests with various uncomfortable urinary symptoms. Common symptoms include:

• Frequent urination: An increased need to urinate, with a sensation of needing to go again soon after urinating.
• Painful urination (dysuria): A stinging or burning pain during urination, especially towards the end.
• Incomplete bladder emptying: A feeling that the bladder has not been completely emptied, even after urinating.
• Cloudy urine: Urine may appear whitish and cloudy, or have a stronger odor.
• Hematuria: Blood may be present in the urine, causing it to appear pink or reddish.

Typical cystitis (acute cystitis) often does not involve fever. If you experience a high fever of 38 degrees Celsius or higher, or pain in your back or flank, it may indicate that the inflammation has spread to the kidneys, which requires careful attention. We will discuss this in more detail later.

Location of Abdominal Pain in Cystitis

With cystitis, in addition to urinary symptoms, you may experience abdominal pain. Since the bladder is located in the lower abdomen (around the navel, just above the pubic bone), abdominal pain due to cystitis is often felt in this central lower abdominal area. The sensation can vary, including "dull, nagging pain," a "heavy, bloated feeling," or "pain that intensifies before and after urination."

The location of the pain can provide a clue to the cause and condition. As a general guide, it can be categorized as follows:

• Lower abdominal pain (around the pubic bone): This is often seen with bladder inflammation.
• Back or flank pain: This is located at the kidneys, not the bladder, and may be a sign that the inflammation has spread to the kidneys. This is especially concerning if accompanied by fever.

However, lower abdominal pain can also be caused by conditions other than cystitis. If the pain is severe, progressively worsens, or is accompanied by fever, do not continue with self-medication using OTC products, but consult a medical institution. This article is not intended for diagnostic purposes.

Main Causes of Cystitis

Most cases of cystitis occur when bacteria enter the bladder through the urethra, multiply, and cause inflammation. E. coli and similar bacteria are common culprits. Women, in particular, are more susceptible because their urethra is shorter and closer to the anus than men's, making it easier for bacteria to reach the bladder. This is considered one of the reasons why cystitis is more prevalent in women.

Additionally, the following lifestyle factors can promote bacterial entry and multiplication:

• Holding urine: Prolonged retention of urine allows bacteria to multiply more easily in the bladder.
• Cold exposure: Chilling the body can reduce blood flow and immunity, making inflammation more likely.
• Dehydration: Reduced urine volume makes it harder to flush out bacteria.
• Fatigue, lack of sleep, stress: These can weaken the body's immune resistance.
• Situations where genital hygiene is difficult to maintain: Such as after sexual intercourse or during menstruation.

Types of Cystitis Medications (OTC vs. Prescription Quick Reference)

Medications used for cystitis are broadly divided into "over-the-counter (OTC) drugs" and "prescription drugs (antibiotics)." Let's first look at an overview. More detailed information on each will be provided in the following sections.

Most cases of cystitis are caused by bacteria, and antibiotics are effective for fundamental treatment. If there is no improvement with OTC drugs after a few days, or if there is hematuria or fever, do not delay seeking medical attention by relying on OTC drugs.

Our clinic offers online guidance for at-home uro-paper testing and treatment with the antibiotic Cravit (levofloxacin) for cystitis. For more details, please see Cystitis Testing and Treatment (Cravit).

Are OTC medications sufficient? Will it heal naturally?

Many people wonder whether cystitis can be managed with over-the-counter (OTC) medications or if it will heal naturally. While mild symptoms may sometimes improve with self-care, such as drinking plenty of fluids, bacterial infections can recur or worsen if not fully treated naturally.

Drugstores offer OTC products for cystitis, often containing herbal ingredients, aimed at alleviating urinary discomfort. While these are expected to help relieve symptoms, their mechanism of action differs from antibiotics, which directly eliminate bacteria. The role and limitations of OTC medications can be summarized as follows:

If symptoms do not improve after several days of using OTC medications, or if symptoms are severe, it is important to consult a medical institution rather than continuing to rely solely on OTC drugs. OTC medications should be considered only one option for temporary self-care.

Cystitis and Kampo Medicine

Some individuals are interested in Kampo medicine as a self-care option for cystitis. Among Kampo formulas used for urinary problems, Gorin-san (五淋散) and Chorei-to (猪苓湯) are commonly known, and some are available as over-the-counter (OTC) drugs in drugstores. These may be used to alleviate uncomfortable symptoms such as pain during urination and incomplete bladder emptying.

However, there are important points to note. Kampo medicines work differently from antibiotics, which directly eliminate bacteria. They are not intended to fundamentally cure bacterial cystitis itself but rather serve as a supportive role to ease symptoms.

Kampo medicines have varying compatibility with individual body types and, rarely, can cause side effects. If you have a chronic illness or are taking other medications, it is advisable to consult a pharmacist when purchasing. If symptoms do not improve after several days of using Kampo medicine, or if symptoms are severe, it is important to consult a medical institution rather than continuing to rely solely on Kampo medicine. This article does not endorse specific products or treatments.

Cases Requiring Antibiotics

For cystitis caused by bacterial infection, antibiotics may be prescribed after a urine test at a medical institution. In the following cases, consider seeking medical attention instead of relying solely on over-the-counter medications:

• Symptoms do not improve after several days with OTC medications or self-care.
• Painful urination or frequent urination is severe and interferes with daily life.
• Recurrent cystitis.
• Visible blood in the urine (hematuria).
• Accompanied by fever or back/flank pain.
• Pregnant, have underlying health conditions, elderly, or concerned about the risk of severe complications.

Antibiotics are medications used under a doctor's judgment. Self-medicating with leftover prescriptions or discontinuing treatment prematurely may lead to insufficient efficacy or contribute to bacterial resistance to the medication. If prescribed, it is crucial to follow the prescribed dosage and administration.

Can I buy antibiotics for cystitis over-the-counter?

Many people think, "I want to buy over-the-counter antibiotics for cystitis" or "I want a fast-acting medicine," but this is a crucial point to understand correctly. Antibiotics, which are used against bacteria, are prescription-only medications in Japan and cannot be purchased over-the-counter at drugstores. OTC medications for cystitis primarily contain herbal ingredients or Kampo medicine, aimed at alleviating urinary discomfort.

Therefore, if you rely solely on OTC medications for bacterial cystitis, expecting them to "act fast," it may actually delay improvement or lead to a recurrence of symptoms. When antibiotics are needed for a causative bacterium, visiting a medical institution and obtaining a prescription based on a urine test often leads to quicker improvement.

Furthermore, avoid self-medicating with leftover antibiotics from a previous prescription. The cause of your current symptoms and the necessary medication may not be the same, and incomplete use can contribute to bacteria developing resistance to the drug. OTC medications should be considered a temporary self-care option, and if symptoms do not improve, consider seeking medical attention.

Daily Self-Care

To prevent cystitis or reduce the physical burden when symptoms occur, there are things you can do in your daily life. However, these are merely supplementary and not a substitute for medical consultation if symptoms persist.

• Drink fluids frequently: Maintain urine volume to help flush out bacteria from the bladder.
• Don't hold urine: Go to the restroom as soon as you feel the urge to urinate.
• Keep your body warm: Insulate your lower abdomen and feet to avoid getting cold.
• Maintain genital hygiene: Wipe from front to back after bowel movements, and choose breathable underwear.
• Get rest: Ensure sufficient sleep and rest, and avoid accumulating fatigue.

Emergency Measures for Severe Cystitis Pain

If you experience severe pain during urination or lower abdominal pain while waiting for a medical appointment, emergency self-care can help alleviate the discomfort. However, it's important to understand that these measures are for temporary pain relief and do not cure the underlying cause of cystitis.

• Drink fluids: Maintaining urine volume helps flush out bacteria from the bladder.
• Warm the lower abdomen: Avoiding cold and warming the lower abdomen can sometimes ease pain and discomfort.
• Over-the-counter pain relievers: General over-the-counter pain relievers can sometimes alleviate pain. When using them, be sure to consult a pharmacist about pre-existing conditions and drug interactions, and follow the dosage instructions.

Even if pain subsides with pain relievers, if the cause is a bacterial infection, the inflammation itself may continue. If symptoms do not improve, recur, or are accompanied by fever or hematuria, do not rely solely on emergency measures; seek medical attention.

Risks of Leaving it Untreated and When to Seek Medical Attention

If cystitis is left untreated or inadequately managed, the inflammation can spread through the ureters to the kidneys, leading to a more severe condition called pyelonephritis. Pyelonephritis can cause high fever, severe back or flank pain, nausea, and may require hospitalization.

If you observe any of the following signs of severe complications, seek medical attention promptly:

• Fever of 38 degrees Celsius or higher.
• Pain in the back or flank.
• Visible blood in the urine.
• Accompanied by nausea or severe fatigue.

Typically, you would visit an internal medicine doctor or a urologist. Women can also consult a gynecologist. Even if symptoms are mild, if they don't improve with over-the-counter remedies or if they recur, it's best not to self-diagnose and wait; consult a nearby medical institution for peace of mind.

Why does cystitis cause hematuria? About hemorrhagic cystitis.

With cystitis, blood may mix with urine, making it appear pink or reddish. Many people are anxious, wondering "why does cystitis cause hematuria?" This is thought to occur because the mucous membrane lining the inside of the bladder is damaged by inflammation, leading to a small amount of bleeding. When there is visible blood in the urine, it is sometimes called hemorrhagic cystitis.

Hemorrhagic cystitis can be caused by bacterial infection, but also by some viral infections, the effects of medications or treatments, among other factors. Since the appropriate response varies depending on the cause, it is not advisable to self-diagnose how to "cure" hematuria.

Here's what you should know when hematuria is observed:

• If there is visible blood in the urine, it is essential to visit a medical institution to determine the cause.
• Drinking fluids helps reduce the burden on the bladder, but it does not resolve the cause of hematuria itself.
• If hematuria is accompanied by fever, severe pain, blood clots, or difficulty urinating, seek medical attention promptly.

Hematuria can also be a sign of conditions other than cystitis. To be safe, do not continue to observe with over-the-counter medications; undergo examination at an internal medicine clinic or urology department.

Frequently Asked Questions

Cystitis Treatment at Mona Clinic

At our clinic, we offer online guidance for at-home urine testing using Uro-Paper and treatment with the antibiotic Cravit (levofloxacin), which directly targets the bacteria causing cystitis. If you have difficulty making time for clinic visits or are concerned about your symptoms but unsure when to seek medical attention, please feel free to consult us. However, if you have signs of severe complications such as fever or back pain, please prioritize an in-person medical consultation.