Hyoscyamine sulfate is an anticholinergic medication. It can ease symptoms of different conditions, including irritable bowel syndrome (IBS), stomach ulcers, and overactive bladder, in adults and children. Hyoscyamine is taken by mouth, typically every 4 hours. It's available in many dosage forms, including immediate-release tablets, sublingual tablets, and oral solution. Some side effects of hyoscyamine include dry mouth, sleepiness, and dizziness.
Hyoscyamine belongs to the drug class known as anticholinergic medications. It works by blocking a chemical called acetylcholine from attaching to receptors (signaling proteins) in various parts of your body.
The following side effects may get better over time as your body gets used to the medication. Let your healthcare provider know immediately if you continue to experience these symptoms or if they worsen over time.
Contact your healthcare provider immediately if you experience any of the following.
Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor immediately if any of the following side effects occur:
Rare
Confusion (especially in the elderly)
dizziness, lightheadedness that continues, or fainting
skin rash or hives
Incidence not known
difficulty with swallowing
fast irregular, pounding, or racing heartbeat or pulse
hives or welts
hoarseness
irritation
itching skin
joint pain, stiffness, or swelling
puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
redness of the skin
shortness of breath
skin rash
tightness in the chest
trouble with breathing
Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
Less common or rare
Bloated feeling
blurred vision
difficult urination
difficulty with swallowing
drowsiness
false sense of well-being
headache
increased sensitivity of eyes to light
loss of memory
nausea or vomiting
redness or other signs of irritation at the place of injection
trouble with sleeping
unusual tiredness or weakness
Incidence not known
Decreased interest in sexual intercourse
inability to have or keep an erection
loss in sexual ability, desire, drive, or performance
loss of taste
For patients using scopolamine:
After you stop using scopolamine, your body may need time to adjust. The length of time this takes depends on the amount of scopolamine you were using and how long you used it. During this period of time check with your doctor if you notice any of the following side effects:
irritability
nightmares
pupil of one eye is larger (patch only)
sensitivity of eyes to light (patch only)
trouble in sleeping
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.
Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.
Tips on how to take hyoscyamine:
More tips for hyoscyamine liquid:
No, hyoscyamine isn't a narcotic because it's not an opioid pain medication. Hyoscyamine is an anticholinergic medication.
No, hyoscyamine isn't a controlled substance.
No, weight loss or weight gain weren't reported side effects in people taking hyoscyamine. If you notice unexpected changes in your weight, contact your provider.
Hyoscyamine doesn't have any known interactions with omeprazole (Prilosec). But you should avoid taking antacids, like calcium carbonate (Tums) or Mylanta, with hyoscyamine because antacids can affect how well hyoscyamine is absorbed into your body. If your provider prescribed these medications together, take hyoscyamine before meals and take antacids after meals to avoid the interaction.
How quickly hyoscyamine works likely depends what formulation (e.g., liquid, tablet, sublingual tablet, etc.) of hyoscyamine you're taking and what condition you're taking hyoscyamine to treat. In general, hyoscyamine is a fast-acting medication that quickly gets into your blood after a dose. Talk to your provider if you're concerned with how well hyoscyamine is working for you.
Providers might prescribe hyoscyamine to help with diarrhea that's caused by certain conditions, such as irritable bowel syndrome (IBS). Hyoscyamine helps relax the muscles in the stomach and intestines, which slows gut movement, and the feeling of needing to go to the bathroom. But hyoscyamine isn't always a good choice for treating diarrhea. For example, diarrhea can also be a symptom of a block in the intestines. In this case, taking hyoscyamine can cause more harm. Don't take hyoscyamine for diarrhea unless directed by your provider.
Hyoscyamine might be able to help with gas, depending on the cause. For example, if you feel bloated because of IBS, your provider might prescribe hyoscyamine to help with the symptoms. If you have gas or feel bloated, talk with your provider first. They can help you figure out the cause and recommend an appropriate treatment.
It's recommended to avoid or limit alcohol while taking hyoscyamine because it can make sleepiness and dizziness worse. if avoiding alcohol isn't a possible option for you, talk to your provider about what's a safe amount of alcohol for you to drink while taking hyoscyamine.
Hyoscyamine can cause some serious health issues. This risk may be even higher for certain groups. If this worries you, talk to your doctor or pharmacist about other options.
Hyoscyamine can cause sleepiness, dizziness, and blurry vision. Don't drive or do any activity the requires a lot of attention until you know how this medication makes you feel.
Hyoscyamine can sometimes change your mood, thoughts, or ability to think. It can cause symptoms such as confusion, memory loss, or feeling disoriented. It can also lead to agitation, seeing or hearing things that aren't really there (hallucinations), or euphoria. In serious cases, it can also lead to a coma. Typically, these symptoms go away in 12 to 48 hours after you stop hyoscyamine. Please let your provider know right away if you experience any changes to your mood, thoughts, or behaviors.
If you have heart problems, such as heart failure, past heart attacks, or high blood pressure, let your provider know. Hyoscyamine can cause your heart rate to go up, which can worsen certain heart conditions. Let your provider know if you notice a change with your heart rate or feel symptoms such as a pounding or racing heart.
Hyoscyamine can cause your autonomic nervous system, also known as involuntary functions of your body, to change. For example, you might experience the muscles of your gut slowing down, which can lead to constipation. Your body might produce less saliva or sweat, which can lead to dry mouth and feelings of thirst, and make it more likely for you to suffer a heat stroke. Hyoscyamine can also affect other functions, such as your heartbeat or vision. Let your provider know if you experience any changes to your bodily functions. If you have a fever, don't take hyoscyamine without asking your provider first.
Hyoscyamine should be used cautiously in people who have prostate problems, because it can worsen their condition and lead to difficulty urinating.
If you've ever had a colostomy (or any similar procedures), let your provider know before you take hyoscyamine for diarrhea. Sometimes, diarrhea is a sign that you have a block in your gut, and taking hyoscyamine can be harmful.
If you think you have food poisoning, let your provide provider know before you take hyoscyamine. If you do, taking this medication can lead to a very dangerous problem called toxic megacolon.
Don't take hyoscyamine if you have severe ulcerative colitis. Large doses of hyoscyamine can slow the gut down to a stop. This can result in serious problems, like severe inflammation and swelling of the colon.
| Dosage | Quantity | Price as low as | Price per unit |
|---|---|---|---|
| 15ml of 0.125mg/ml | 1 dropper | $16.20 | $16.20 |
| 20ml of 0.125mg/ml | 1 dropper | $19.61 | $19.61 |
| Dosage | Quantity | Price as low as | Price per unit |
|---|---|---|---|
| 0.125mg/5ml | 150 ml | $22.35 | $0.15 |
| Dosage | Quantity | Price as low as | Price per unit |
|---|---|---|---|
| 0.125mg | 30 orally disintegrating tabs | $11.98 | $0.40 |
| Dosage | Quantity | Price as low as | Price per unit |
|---|---|---|---|
| 0.125mg | 30 sublingual tablets | $12.83 | $0.43 |
| Dosage | Quantity | Price as low as | Price per unit |
|---|---|---|---|
| 0.125mg | 30 tablets | $12.76 | $0.43 |
Hyoscyamine comes in many different formulations, including immediate-release (IR) tablet, extended-release tablets, orally disintegrating tablet, and liquid solutions. Follow the directions your provider gave for your specific hyoscyamine product.
Some examples include:
Hyoscyamine 0.125 mg immediate-release (IR) tablet:
Hyoscyamine 0.375 mg extended-release tablets:
Hyoscyamine 0.125 mg/1 mL oral solution drops:
There's also an injectable form that's used for people in the hospital who aren't able to take hyoscyamine by mouth.
Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are taking any of these medicines, it is especially important that your healthcare professional know if you are taking any of the medicines listed below. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.
Using medicines in this class with any of the following medicines is not recommended. Your doctor may decide not to treat you with a medication in this class or change some of the other medicines you take.
Using medicines in this class with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.
Contraindications are specific health conditions or situations in which a person should not take a medication due to safety concerns. If you have any of the following conditions or if any of the following apply to you, let your healthcare provider know because Hyoscyamine will not be safe for you to take.