What it's used for
Temporarily alleviates symptoms of neuroinflammation while promoting drainage according to homeopathic indications.
Source: U.S. FDA-approved prescribing information (openFDA).
Typical dosing
Adults and children 12 years of age and older take 1 full eyedropper twice a day.
Dosing shown here is the general FDA-labeled range. Your prescribing clinician determines the exact dose, form, and schedule for you — this is not a substitute for medical advice.
Boxed warning / key safety info
Ask a doctor before use if pregnant or nursing, and consult a physician if symptoms persist for more than 7 days or worsen.
Common side effects
See full FDA prescribing information for the complete adverse reaction profile.
Covered strengths on the Tab $0 list
Covered at $0 with an active Tab membership when filled at a participating pharmacy nationwide or through mail order. A licensed clinician must prescribe the medication.
Related medications
Other everything else medications covered at $0 with an active Tab membership.
Hyoscyamine cost without insurance
Cash prices for Hyoscyamine without insurance vary widely by pharmacy, strength and quantity — the same prescription can cost very different amounts at two pharmacies in the same town. That is the problem a membership solves.
Hyoscyamine is on Tab's covered $0 generic list. With an active Tab membership, every covered strength is $0 — not a percentage off, not a coupon that changes month to month — at participating pharmacies nationwide or through mail order. You do not need insurance, and Tab works whether or not you have a health plan.
Tab is a membership, not insurance. Covered medications require a prescription from a licensed clinician.
Hyoscyamine dosage and administration
HYOSYNE ORAL DROPS (Hyoscyamine Sulfate Oral Solution) Dosage may be adjusted according to the conditions and severity of symptoms. Measuredosage very carefully. Adults and pediatric patients 12 years of age and older : 1 to 2 mL every four hours or as needed. Do not exceed 12 mL in 24 hours. Pediatric patients 2 to under 12 years of age : 1/4 to 1 mL every four hours or as needed. Do not exceed 6 mL in 24 hours. Pediatric patients under 2 years of age : The following dosage guide is based upon body weight. The doses may be repeated every four hours or as needed.
Excerpt from the FDA-approved prescribing information (openFDA), retrieved 2026-09-15. Your prescribing clinician decides the exact dose, form and schedule for you — this is not medical advice.
Hyoscyamine side effects
All of the following adverse reactions have been reported with hyoscyamine sulfate. Adverse reactions may include dryness of the mouth; urinary hesitancy and retention; blurred vision; tachycardia; palpitations; mydriasis; increased ocular tension; loss of taste; headache; nervousness; drowsiness; weakness; fatigue; dizziness; insomnia; nausea; vomiting; impotence; constipation; bloated feeling; abdominal pain; diarrhea; allergic reactions or drug idiosyncrasies; urticaria and other dermal manifestations; ataxia; speech disturbance; some degree of mental confusion and/or excitement (especially in elderly persons); short-term memory loss; hallucinations; and decreased sweating.
Excerpt from the FDA-approved prescribing information (openFDA), retrieved 2026-09-15. This is not a complete list. Report side effects to your clinician, and seek care for anything severe or unexpected.
Who should not take hyoscyamine
Glaucoma; obstructive uropathy (for example, bladder neck obstruction due to prostatic hypertrophy); obstructive disease of the gastrointestinal tract (as in achalasia, pyloroduodenal stenosis); paralytic ileus, intestinal atony of elderly or debilitated patients; unstable cardiovascular status in acute hemorrhage; severe ulcerative colitis; toxic megacolon complicating ulcerative colitis; myasthenia gravis.
Excerpt from the FDA-approved prescribing information (openFDA), retrieved 2026-09-15. Whether this medication is appropriate for you is a clinical decision made by your prescribing clinician.
Common questions
Is hyoscyamine covered at $0 with Tab?
Yes. Hyoscyamine is on Tab's covered $0 generic list — every covered strength is $0 with an active membership, at participating pharmacies nationwide or by mail order.
Do I need insurance to get hyoscyamine through Tab?
No. Tab is a membership, not insurance. Covered medications are $0 with an active membership whether or not you have a health plan.
How do I get a hyoscyamine prescription with Tab?
Book a video visit with a licensed Tab clinician (unlimited visits are included with membership). If it's clinically appropriate, they send the prescription to your chosen participating pharmacy or by mail order.
How much does hyoscyamine cost without insurance?
Without insurance, retail cash prices for hyoscyamine vary by pharmacy, strength and quantity. Hyoscyamine is on Tab's covered $0 generic list, so every covered strength is $0 with an active Tab membership at participating pharmacies nationwide or by mail order.
What is the cheapest way to get hyoscyamine?
For medications on Tab's covered list, a Tab membership is the cheapest route: covered strengths of hyoscyamine are $0 with an active membership, and unlimited video visits with a licensed clinician are included, so the visit that produces the prescription is covered too.
What is the usual dose of hyoscyamine?
HYOSYNE ORAL DROPS (Hyoscyamine Sulfate Oral Solution) Dosage may be adjusted according to the conditions and severity of symptoms. Measuredosage very carefully. Adults and pediatric patients 12 years of age and older : 1 to 2 mL every four hours or as needed. Do not exceed 12 mL in 24 hours. Pediatric patients 2 to under 12 years of age : 1/4 to 1 mL every four hours or as needed. Do not exceed 6 mL in 24 hours. (FDA-approved label, retrieved 2026-09-15. Your clinician sets your dose.)
What are the side effects of hyoscyamine?
All of the following adverse reactions have been reported with hyoscyamine sulfate. Adverse reactions may include dryness of the mouth; urinary hesitancy and retention; blurred vision; tachycardia; palpitations; mydriasis; increased ocular tension; loss of taste; headache; nervousness; drowsiness; weakness; fatigue; dizziness; insomnia; nausea; vomiting; impotence; constipation; bloated feeling; abdominal pain; (FDA-approved label, retrieved 2026-09-15.)
Hyoscyamine is $0 on the covered list
Members pay $0 for covered generics at participating pharmacies nationwide or by mail order — plus unlimited virtual primary care, urgent care and dermatology visits. No insurance needed.
Solo $49/mo · Family $119/mo for up to 4 people · Family+ $149/mo for up to 8
Start your membership → Compare plansTab is a membership and prescription-discount program, not insurance. A licensed clinician must prescribe any medication. Cancel anytime — no renewal.