Comparing Loperamide vs Methimazole

View side-by-side comparisons of medication uses, ratings, cost, side effects and interactions.
Loperamide	Methimazole	Enter another drug to compare

Loperamide

Methimazole

Prescription and OTC

Loperamide effectively treats diarrhea in adults and children over the age of 2 years by slowing down the movement of the bowel. Children are especially sensitive to its effects, especially if they... View more

Prescription only

Prescribed for Hyperthyroidism. Methimazole may also be used for purposes not listed in this medication guide.

More about Loperamide

More about Methimazole

Ratings & Reviews

Loperamide has an average rating of 8.4 out of 10 from a total of 93 ratings on Drugs.com. 76% of reviewers reported a positive effect, while 10% reported a negative effect.

Methimazole has an average rating of 5.5 out of 10 from a total of 113 ratings on Drugs.com. 35% of reviewers reported a positive effect, while 35% reported a negative effect.

View all 93 reviews

View all 113 reviews

Side Effects Experienced by Users Side effects are reported in Drugs.com user reviews and not clinically verified.

Constipation (6.5%)
Diarrhea (5.4%)
Cramps (4.3%)
Abdominal pain (3.2%)
Upset stomach (3.2%)

View all Loperamide side effects

Weight gain (23.0%)
Itching (16.8%)
Hair loss (13.3%)
Headaches (13.3%)
Rash (11.5%)
Nausea (10.6%)
Dizziness (9.7%)

View all Methimazole side effects

Drug Class

Antidiarrheals

Antithyroid agents

Generic Availability

Lower cost generic

Pricing and Coupons * Prices are without insurance

Quantity	6 capsule
Strength	2 mg
Per unit^*	$1.97
Cost^*	$11.81

View all Loperamide prices

Quantity	100 each
Strength	5 mg
Per unit^*	$0.23
Cost^*	$22.75

View all Methimazole prices

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Dosage Forms

Oral capsule
Oral liquid
Oral suspension
Oral tablet

Oral tablet

Half Life Drug half-life is the time required for plasma concentration to reduce to half its original value.

10.8 hours

13 hours

CSA Schedule ¹ View glossary of CSA terms

Not a controlled drug

Is not subject to the Controlled Substances Act.

Not a controlled drug

Is not subject to the Controlled Substances Act.

Pregnancy Category

Category C Risk cannot be ruled out

See the full pregnancy warnings document.

Category D Positive evidence of risk

See the full pregnancy warnings document.

Drug Interactions

A total of 353 drugs are known to interact with Loperamide:

44 major drug interactions (170 brand and generic names)
308 moderate drug interactions (1217 brand and generic names)
1 minor drug interactions (7 brand and generic names)

A total of 64 drugs are known to interact with Methimazole:

10 major drug interactions (29 brand and generic names)
53 moderate drug interactions (236 brand and generic names)
1 minor drug interactions (4 brand and generic names)

Alcohol/Food/Lifestyle Interactions

Alcohol can increase the nervous system side effects of loperamide such as dizziness, drowsiness... View more

No known alcohol/food interactions. This does not necessarily mean no interactions exist. Always consult your healthcare provider.

Disease Interactions

First Approval Date

N/A

June 21, 1950

WADA Class View classifications

N/A

More Information

Patient Resources

Loperamide uses

Methimazole uses

Professional Resources

¹ The Controlled Substances Act (CSA) schedule information displayed applies to substances regulated under federal law. There may be variations in CSA schedules between individual states.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Medical Disclaimer

Comparing Loperamide vs Methimazole

See also:

Bentyl

Xifaxan

Ozempic

Metamucil

Levsin

Librax

Hyosyne

Lotronex

Psyllium

Hyoscyamine

Further information

Comparing Loperamide vs Methimazole

See also:

Further information

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