Red flags
Symptoms that mean seek care now — not after the next workout, not after the next lab draw.
Seek care now if you have any of these
- Chest pain or pressure — especially with sweating, nausea, pain spreading to the arm, neck, or jaw, or breathlessness. Do not drive yourself.
- Severe breathlessness — struggling to breathe at rest, unable to speak full sentences, or lips or face turning blue or grey.
- One-sided leg swelling — particularly with pain, warmth, or redness in one calf or thigh, which can indicate a clot.
- Severe headache or vision changes — a sudden worst-ever headache, loss of vision, double vision, or slurred speech or weakness on one side.
- Marked jaundice — yellowing of the skin or eyes, especially with dark urine, pale stools, confusion, or severe abdominal pain.
- Severe mood changes — thoughts of harming yourself or others, behavior that feels out of your control, or a sudden break from reality.
- Fainting, seizure, or confusion — collapsing, convulsing, or being unable to think or speak clearly.
- Sharply reduced urination with swelling or breathlessness — which can indicate acute kidney or cardiac problems.
- Severe abdominal pain — sudden, intense, or worsening pain, especially with vomiting or a rigid abdomen.
- Signs of severe allergic reaction — swelling of the lips, tongue, or throat, or difficulty breathing after any injection or new product.
What to do
Call emergency services or go to an emergency department. Tell clinicians everything relevant: what compounds you use, what you last took and when, and what your recent labs showed if you know them. Clinicians are not there to judge the use; they are there to treat the emergency, and incomplete information makes their job harder and your outcome worse. If someone else is experiencing these symptoms, stay with them, call for help, and do not leave them alone to "sleep it off."
What is not on this list
Most side effects are not emergencies: mild acne, transient water retention, a single slightly elevated lab value, or a sore injection site without spreading redness or fever. Those belong in a routine clinician conversation, not an emergency department — and knowing the difference is part of the point. If you are unsure whether something is urgent, err toward getting checked: the cost of an unnecessary visit is an afternoon; the cost of a missed emergency is not comparable.
Read this before you need it
Red-flag lists are useless if they are first read during the emergency. Skim this page now, know the shape of it, and know that the action is always the same: seek care, tell the truth about what you use, and let clinicians do their job. That is the entire protocol, and it fits in one sentence.
Back to Harm Reduction · Related: Heart & blood, Mind & mood. Educational content only. Not medical advice.