SOMOPHYLLIN-T vs THEOBID

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated June 7, 2026·How we rate

Attribute	SOMOPHYLLIN-T	THEOBID
Rating	New	New
Pharmacy pays	$0.86 /mL	$0.86 /mL
Type	RX	RX
Active ingredient	THEOPHYLLINE	THEOPHYLLINE
Manufacturer	Fisons	Whitby
Dosage forms	Capsule	Capsule, extended release
Drug class	Methylxanthine	Methylxanthine
Boxed warning	None	None
Half-life	about 8.7 hours on average (range roughly 6 to 13 hours) in otherwise healthy non-smoking adults 16-60 years	about 8.7 hours on average (range roughly 6 to 13 hours) in otherwise healthy non-smoking adults 16-60 years
Treats	Apnea, Asthma, Bradycardia	Apnea, Asthma, Bradycardia

somophyllin-t theobid

Rating

New

Pharmacy pays

$0.86 /mL

Type

Active ingredient

THEOPHYLLINE

Manufacturer

Fisons

Whitby

Dosage forms

Capsule

Capsule, extended release

Drug class

Methylxanthine

Boxed warning

None

Half-life

about 8.7 hours on average (range roughly 6 to 13 hours) in otherwise healthy non-smoking adults 16-60 years

Treats

Apnea, Asthma, Bradycardia

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Frequently asked questions

Which is cheaper, Somophyllin-T or Theobid?

Pharmacies pay about the same to acquire either one — roughly $0.86 per ml, per the CMS NADAC survey. That is not what you will be charged: your price is set by your insurer and the pharmacy, not by what the drug cost them.

What is the difference between Somophyllin-T and Theobid?

Both Somophyllin-T and Theobid share the active ingredient Theophylline.

Ratings are based on FDA regulatory (recall-safety) data. This comparison is for general reference only — not medical advice. Always consult a licensed professional before choosing or switching a medication.