Cymbalta Does Not Come in Liquid Formulation
Cymbalta (duloxetine) is only available as delayed-release capsules and does not come in a liquid formulation. The FDA-approved formulations are 20 mg, 30 mg, and 60 mg capsules for oral use 1.
Critical Administration Requirements
The FDA label explicitly states that Cymbalta capsules must be swallowed whole and cannot be chewed, crushed, opened, or have their contents sprinkled on food or mixed with liquids 1. This restriction exists because the medication has an enteric coating that protects the drug from gastric acid degradation.
Alternative for Patients with Swallowing Difficulties
If a patient cannot swallow capsules whole, there is one validated workaround:
The capsule can be opened and the enteric-coated pellets inside can be mixed with applesauce or apple juice 2. This method has been validated in laboratory studies showing:
- The enteric coating remains intact when pellets are exposed to applesauce or apple juice (pH ~3.5)
- Pellets remain stable at room temperature for up to 2 hours
- Full drug delivery is maintained if pellet integrity is preserved (not crushed or chewed)
- Apple juice can also be used as a wash for nasogastric tube administration 2
Critical Caveat - Avoid Chocolate Pudding
Do not mix duloxetine pellets with chocolate pudding (pH ~5.5-6.0), as this damages the enteric coating and causes premature drug release (90% released in gastric acid within 2 hours versus <1% with proper formulation) 2. This would result in drug degradation and loss of therapeutic effect.
Practical Instructions
If using the pellet-mixing method:
- Open the capsule carefully
- Mix pellets immediately with applesauce or apple juice
- Administer within 2 hours
- Ensure patient does not chew the pellets
- Confirm complete ingestion of all pellets to deliver full dose
This approach is particularly useful for elderly patients or those with dysphagia who require duloxetine therapy but cannot manage intact capsules.