HomePeptides › Pramlintide

Pramlintide

Symlin

Tier 1 · FDA Approved
Class
Amylin analog
Molecular target
Amylin receptor complexes (AMY1-3)
Sequence / structure
37-aa human amylin analog (Pro25, Pro28, Pro29)
Evidence tier
Tier 1 — FDA Approved
Category
Metabolic & Incretin
Emergency card
Signs something is wrong

Shakiness, cold sweat, sudden intense hunger, pounding heart, confusion or slurred speech — a blood-sugar crash, which this compound can trigger fast.

What to do now

Take fast sugar immediately — juice, regular (non-diet) soda, or glucose tablets. Do not try to wait it out. Recheck after 15 minutes and repeat if still low.

When it is an emergency

If the person becomes confused, cannot swallow safely, has a seizure, or passes out, call 911 — this can be fatal, and crashes from IGF-1 can be severe and prolonged.

Any injection — every time

Allergic reaction: hives, swelling of the lips, tongue or throat, wheezing or dizziness can escalate to anaphylaxis within minutes — call 911 immediately. Site infection: spreading redness, heat, swelling, pus or fever is not wait-and-see; an abscess or cellulitis can need drainage or IV antibiotics. Unverified product: grey-market vials are frequently mislabelled or contaminated, so a reaction may be to endotoxin or the wrong contents, not the named compound.

This is not permission or instruction to use this compound. It is harm-reduction information for someone who has already decided to, so that a bad reaction is recognised and treated. When in doubt, get help — embarrassment is survivable.

Biology & mechanism

Human amylin aggregates into amyloid fibrils, which makes it undruggable. Pramlintide substitutes three prolines — borrowed from rat amylin, which does not aggregate — producing a soluble analog with retained activity. It slows gastric emptying, suppresses inappropriate postprandial glucagon, and promotes satiety via the area postrema. It is the approved proof-of-concept for the mechanism cagrilintide is now pursuing.

What the research actually shows

Approved in 2005 on trials in type 1 and type 2 diabetes as mealtime adjunct therapy to insulin. Commercially marginal, but the pharmacology is established.

Regulatory status

FDA-approved as adjunct mealtime therapy with insulin in type 1 and type 2 diabetes. Prescription-only.

Safety signals

Boxed warning for severe insulin-induced hypoglycaemia, typically within three hours of dosing. Requires concurrent insulin dose reduction and close glucose monitoring — this is genuinely a drug that kills people who use it casually. Nausea is common.

Clinical trial dosing — what the studies actually used

Type 1 diabetes: 15 mcg before meals, titrated to 30–60 mcg. Type 2: 60 mcg, up to 120 mcg. Given only with a mandatory reduction in mealtime insulin. FDA-label.

Reported from clinical trials or FDA labelling as a matter of record. It is not a recommendation, and for unapproved compounds no dose has been shown safe or effective in humans.

We report study doses, not protocols

Above is what was administered in trials or on FDA labels, reported as fact. We do not convert it into a personal protocol, calculate a dose for your body weight, or tell you what to inject or how to reconstitute it — that decision belongs with a licensed physician. See our editorial policy.

References & further reading

Regulatory status changes. This page reflects our reading of public sources as of July 2026 and should be independently verified before it is relied upon.

Important notice Forge Bioenergy publishes scientific reference information only. Nothing on this site is medical advice, a therapeutic claim, or a recommendation to use any substance in humans. Many peptides described here are not approved by the FDA for any use, and several are approved only for narrow indications under prescription. We do not publish dosing, administration, or usage protocols. Consult a licensed physician before making any medical decision.