Frequent urination (more than 8 times in 24 hours) in a woman can be caused by lifestyle factors, temporary conditions like a urinary tract infection (UTI) or pregnancy, or underlying medical conditions such as an overactive bladder (OAB) or diabetes.
Most people pee on average about seven to eight times per day. If you feel the need to pee more than that, or if you have to get up to pee every 30 minutes to an hour, you might be frequently urinating. But context matters. This may still be “normal” if you're drinking lots of fluids or taking certain medications.
See a health care professional if you have symptoms of a bladder problem, such as trouble urinating, a loss of bladder control, waking to use the bathroom, pelvic pain, or leaking urine.
Urination problems are possible with calcium channel blockers, including amlodipine. This is because they can interfere with how your bladder fills, contracts, and empties. You may notice that you need to pee more frequently or that you're getting up at night to use the bathroom.
Using too much of this medicine or using it for a long time may increase your risk of having adrenal gland problems. Talk to your doctor right away if you have blurred vision, dizziness or fainting, a fast, irregular, or pounding heartbeat, increased thirst or urination, irritability, or unusual tiredness or weakness.
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Serious side effects
sleepy or confused, feeling very thirsty or hungry, peeing more often, flushing, breathing quickly or breath that smells like fruit – these can be signs of high blood sugar.
Blood pressure medications such as beta blockers, angiotensin-converting enzyme (ACE) inhibitors, and angiotensin receptor blockers (ARBs) can trigger or worsen overactive bladder by interfering with the ability of the smooth muscle in the urinary bladder to contract.
Common side effects
Outcome and Management. The severity of liver injury from amlodipine ranges from mild and transient serum enzyme elevations to self-limited jaundice. Complete recovery is expected after stopping the drug and recovery is usually rapid (4 to 8 weeks).
If you have an overactive bladder, you may: Feel a sudden urge to urinate that's hard to control. Lose urine without meaning to after an urgent need to urinate, called urgency incontinence.
Feeling a strong, sudden need to urinate—even when your bladder isn't full—can be a warning sign of bladder cancer, especially if there's no UTI present. This symptom can affect both men and women.
If you have any of these symptoms along with frequent urination, seek care right away: Blood in your urine. Red or dark brown urine. Pain when you pass urine.
The "21-second pee rule" comes from a scientific discovery that most mammals over about 3 kg (like dogs, cows, elephants) empty their bladders in roughly 21 seconds, regardless of their size, due to physics involving urethra length and gravity. For humans, this serves as a loose benchmark: urinating significantly faster (e.g., under 10 seconds) or slower (over 30 seconds) might signal holding it too long or an overactive bladder, though it's not an exact diagnosis.
If you feel the need to urinate more often, especially at night, this can be a sign of kidney disease. When the kidney's filters are damaged, it can cause an increase in the urge to urinate. Sometimes this can also be a sign of a urinary infection or enlarged prostate in men.
The following strategies may help:
Who may not be able to take amlodipine
5 of the worst blood pressure medications
Recently, some researchers have questioned the benefit of amlodipine for treating hypertension. Studies suggested that amlodipine may activate a different type of calcium channel, resulting in changes to blood vessels and an increase in heart failure in patients.
Alpha-blockers and Alpha-2 agonists are not recommended as first-choice treatment for high blood pressure. Beta-blockers can worsen asthma symptoms and other lung conditions. Vasodilators and loop diuretics present a risk of serious side effects.
There were no interactions found between amlodipine and Vitamins.
Medications
If you take oral corticosteroids for a long time, your adrenal glands may produce less of their natural steroid hormones. To give your adrenal glands time to recover this function, your provider may reduce your dose gradually.
What may interact with this medication?
Many people enjoy the benefits of prednisone and other corticosteroids which are powerful anti-inflammatory drugs that can reduce pain and discomfort related to allergic reactions, arthritis, autoimmune conditions and more. In some cases, they even elevate mood, creating a sense of euphoria and excessive energy.