Safety and Side Effects

Question 1

When should I seek urgent or emergency care?

Accepted Answer

Call 911 or go to the nearest emergency department immediately for chest pain or chest pressure, difficulty breathing or sudden breathlessness, fainting or loss of consciousness, an erection lasting more than four hours, sudden loss of vision or hearing, signs of a blood clot such as swelling, pain or warmth in one leg or a sudden severe headache, or a severe allergic reaction with swelling of the face, lips, tongue or throat, difficulty swallowing or a spreading rash. Do not wait for a reply and do not use a website message, email, text or patient portal message for any of these — ACT 2 Health is not an emergency service and cannot respond to an emergency. Once you are safe, tell your ACT 2 Health clinician what happened, so your plan can be reviewed in light of it.

Question 2

Can I take tadalafil or another PDE5 inhibitor if I take nitrates?

Accepted Answer

No. Tadalafil and other PDE5 inhibitors are contraindicated with nitrates in any form — nitroglycerin tablets, spray, patches or ointment, isosorbide mononitrate and isosorbide dinitrate — because the combination can cause a severe and potentially fatal drop in blood pressure. This is an absolute contraindication, not a caution to be weighed: if you take a nitrate at all, including one you use only occasionally or as a rescue medication, tell your clinician, and do not take a PDE5 inhibitor. Tadalafil also requires caution with alpha-blockers and other blood pressure medications, because their effects on blood pressure add together.

Question 3

Do poppers count as nitrates?

Accepted Answer

Yes. Amyl nitrite and the related inhaled products sold as poppers are nitrates, and taking them with tadalafil or any other PDE5 inhibitor carries the same risk of a severe, potentially fatal drop in blood pressure as a prescription nitrate such as nitroglycerin. Recreational use counts, so tell your clinician if poppers are part of your life — the combination is contraindicated regardless of why either substance was taken, and regardless of how much time passed between them. If you have taken a PDE5 inhibitor and become faint, dizzy or develop chest pain, seek emergency care rather than waiting to see whether it settles.

Question 4

Why does ACT 2 Health need a full list of my medications?

Accepted Answer

A clinician cannot judge whether a treatment is appropriate without knowing everything you already take, because at ACT 2 Health the most serious risks are interaction risks rather than the medication itself. The nitrate and PDE5 inhibitor interaction can be fatal; methylene blue is a monoamine oxidase inhibitor and must not be combined with SSRIs, SNRIs, MAOIs, triptans or other serotonergic medications because of the risk of serotonin syndrome; rapamycin has extensive CYP3A4 interactions, including with grapefruit; and GLP-1 medications slow gastric emptying, which can alter the absorption of other oral medications, including oral contraceptives. Include prescriptions from every prescriber, anything taken only occasionally or as needed, over-the-counter medicines, supplements and recreational substances. An incomplete list is the most common way a safe plan becomes an unsafe one.

Question 5

Can I take an ACT 2 treatment alongside medication from another prescriber?

Accepted Answer

Usually yes — ACT 2 Health is designed to work alongside your existing prescriber rather than replace them — but the clinician needs the complete list of what you already take before anything is added, and some combinations are ruled out outright. Nitrates with a PDE5 inhibitor, serotonergic medications with methylene blue, and anything that lowers sodium alongside compounded oxytocin are exclusions rather than judgment calls. Never stop, start or change a medication another prescriber gave you on your own: raise it with the prescriber who wrote it, or with your ACT 2 Health clinician, and let them coordinate. Sharing your ACT 2 Health plan and lab results with your own physician is encouraged, and makes that coordination easier.

Question 6

Do I need to tell ACT 2 Health about vitamins and supplements?

Accepted Answer

Yes — list every supplement you take, including vitamins, herbal products and anything bought over the counter, because supplements interact with prescription medication and they also distort lab results. Concurrent B-vitamin supplementation can mask a B12 deficiency on a blood panel, which is why it matters before testing as well as before prescribing. Some supplements carry a real interaction risk rather than a theoretical one, and the word natural tells you nothing about whether a product is inert. If you start something new after your plan is set, tell your clinician then rather than waiting for the next follow-up.

Question 7

What does it mean that a medication is compounded?

Accepted Answer

A compounded medication is prepared for an individual patient by a licensed compounding pharmacy, to a prescription written for that person, rather than manufactured in fixed strengths and sold as a finished product — which is how a combination preparation, or a strength or route that is not commercially available, becomes possible. Compounding describes how a medicine was made; it does not mean a generic, a cheaper copy of a branded drug, or a preparation that inherits a branded product's evidence. Compounded medication. Prepared by a licensed compounding pharmacy under a prescription written for you. Compounded medications are not FDA-approved, are not reviewed by the FDA for safety or effectiveness, and are not equivalent to or interchangeable with any branded product. Prescribed only when a licensed provider determines it is medically appropriate.

Question 8

Are compounded medications FDA-approved?

Accepted Answer

No. Compounded medication. Prepared by a licensed compounding pharmacy under a prescription written for you. Compounded medications are not FDA-approved, are not reviewed by the FDA for safety or effectiveness, and are not equivalent to or interchangeable with any branded product. Prescribed only when a licensed provider determines it is medically appropriate.

Question 9

Does the clinical trial evidence for a branded medication apply to the compounded version?

Accepted Answer

No. A compounded preparation may contain the same active ingredient as a branded medication, but it has not been through the trials that branded product was tested in, and no trial has established what the compounded preparation does. Results vary. Clinical trial results apply only to the FDA-approved branded medication specifically identified and do not apply to compounded medications. All medications must be prescribed by a licensed provider based on medical necessity.

Question 10

How are compounding pharmacies regulated?

Accepted Answer

Compounding pharmacies are licensed and inspected by state boards of pharmacy and operate under Sections 503A and 503B of the Federal Food, Drug, and Cosmetic Act, which is a different regime from the one that governs a drug manufacturer. A 503A pharmacy compounds against an individual prescription and is overseen primarily by its state board; a 503B outsourcing facility registers with the FDA and is inspected against current good manufacturing practice. Neither route makes a compounded preparation FDA-approved, and under neither one does the FDA review the preparation for safety or effectiveness. ACT 2 Health prescriptions are dispensed by licensed, quality-controlled pharmacies, and you can ask which pharmacy is preparing yours.

Question 11

What is monitored while I am on treatment, and why?

Accepted Answer

Monitoring at ACT 2 Health is specific to the therapy: testosterone therapy is followed with repeat testosterone, hematocrit, estradiol and PSA, because those are the markers that move and the ones that signal a problem early; estrogen therapy is followed clinically, and any bleeding after menopause is investigated rather than watched; GLP-1 treatment is followed for tolerability and for the symptoms that would signal pancreatitis or gallbladder disease; metformin includes vitamin B12 and kidney function, because long-term use reduces B12 absorption; and rapamycin requires regular laboratory monitoring of lipids and glucose handling, and is not prescribed without a commitment to it. Peptide therapy is monitored clinically alongside baseline and repeat blood work, because for most peptides there is no single marker that tracks the effect. The purpose of monitoring is to catch a problem while it is still a number on a page rather than a symptom you can feel.

Question 12

Are ACT 2 Health treatments safe?

Accepted Answer

No treatment is safe in the abstract — safety is a judgment about a particular treatment for a particular person, made from your history, your current medications and, where relevant, your lab results — and several ACT 2 Health treatments are compounded preparations that are not FDA-approved. All medical decisions are made solely by licensed healthcare professionals. Medications are prescribed only when medically necessary. GLP-1 medications are not suitable for everyone. Results may vary.

Question 13

Who should not use ACT 2 Health at all?

Accepted Answer

ACT 2 Health is for adults and is not appropriate for children or adolescents, for anyone who is not physically located in a US state at the time of a visit, for anyone who needs urgent or emergency care, or for anyone whose problem requires a physical examination, imaging or hands-on treatment. It is also not the right service during pregnancy or breastfeeding, or for anyone seeking a prescription without evaluation, lab work and follow-up. A clinician may additionally decline to treat where the monitoring a therapy requires is not available where you live. Being declined for one treatment does not rule out every treatment, and the clinician will say what kind of care to seek instead.

Question 14

Can I be treated if I am pregnant, breastfeeding or trying to conceive?

Accepted Answer

ACT 2 Health treatments are not prescribed during pregnancy or breastfeeding, and several are also excluded while you are trying to conceive. GLP-1 medications such as semaglutide and tirzepatide, rapamycin, compounded NAD+ and glutathione injections and methylene blue are all excluded in pregnancy and breastfeeding; compounded oxytocin is additionally excluded when trying to conceive, because oxytocin stimulates the uterus; and the 5-alpha-reductase inhibitors used in hair loss treatment are teratogenic and must not be taken or even handled by women who are pregnant or may become pregnant. Tell your clinician if you are pregnant, may be pregnant, are breastfeeding or are trying to conceive — at any point, including after a treatment has started. If you become pregnant while on a treatment, contact your clinician promptly rather than deciding on your own what to do about it.

Question 15

Can I be treated if I have a history of cancer?

Accepted Answer

A history of cancer does not automatically rule out care at ACT 2 Health, but it changes what can be considered and it rules some treatments out outright. A personal or family history of medullary thyroid carcinoma or Multiple Endocrine Neoplasia syndrome type 2 excludes GLP-1 treatments such as semaglutide and tirzepatide; active breast or endometrial cancer, or any active estrogen-sensitive cancer, excludes systemic estrogen therapy; and any history of malignancy is reviewed before a growth-hormone-releasing peptide such as sermorelin is considered. If you are under the care of an oncologist, say so, and expect your ACT 2 Health clinician to want that oncologist's input before anything is prescribed.

Question 16

Can I be treated if I have heart disease?

Accepted Answer

Cardiovascular disease does not rule out care at ACT 2 Health, but it excludes specific treatments and it changes how the rest are evaluated. Tadalafil, and the compounded blends that contain it, are not appropriate after a recent heart attack or stroke, with unstable angina or with uncontrolled blood pressure, and are contraindicated with nitrates in any form. Compounded oxytocin is not used with uncontrolled blood pressure or significant cardiovascular disease until that is addressed, and beta blockers are not appropriate with bradycardia, certain cardiac conduction abnormalities or significant hypotension. Tell your clinician about every cardiac diagnosis, procedure and medication, including blood pressure and rhythm medications — this is the area where an incomplete history does the most harm.

Question 17

Can I be treated if I have liver or kidney disease?

Accepted Answer

Liver or kidney disease does not automatically rule out care at ACT 2 Health, but it is one of the first things a clinician checks, because several treatments are cleared or metabolized by those organs. Metformin is not appropriate with significant renal impairment, acute illness with dehydration or a history of lactic acidosis, and hepatic disease requires review; systemic estrogen is not appropriate with active liver disease; enclomiphene is not appropriate with significant hepatic impairment; and compounded NAD+ and glutathione injections require review where renal or hepatic impairment is significant. Bring any recent liver or kidney results you have, and mention the diagnosis even if it has been described to you as mild or historic.

Question 18

Can I drink alcohol while I am on treatment?

Accepted Answer

Alcohol is not automatically off-limits at ACT 2 Health, but it interacts with several treatments and it is worth being honest with your clinician about how much you actually drink. Heavy alcohol use is a significant concern with metformin because of the risk of lactic acidosis; alcohol and tadalafil both lower blood pressure, so together they can cause dizziness or fainting; and many people find alcohol affects them differently once they are on a GLP-1. Alcohol also shows up directly on a lab panel — in liver enzymes, triglycerides and blood pressure — so understating it makes your own results harder to interpret. Your real intake changes both what is safe to prescribe and what your numbers mean.

Question 19

What should I tell ACT 2 Health about drug allergies?

Accepted Answer

Tell your ACT 2 Health clinician about every drug allergy and every reaction you have had to a medication, including what actually happened, because a reaction described as an allergy and a reaction described as a side effect are handled very differently. Some preparations carry allergens that are not obvious from the drug name: compounded progesterone capsules, for example, may be suspended in peanut oil, so a peanut allergy has to be disclosed. Injection-site reactions are common with injectable preparations; true allergic reactions are not. A severe allergic reaction — swelling of the face, lips, tongue or throat, difficulty breathing or swallowing, or a spreading rash — is a medical emergency, so call 911 rather than messaging your clinician.

Question 20

Can I take more than one ACT 2 treatment at the same time?

Accepted Answer

Several ACT 2 Health treatments can be prescribed together and many patients are on more than one, but which combinations are appropriate is a clinical decision rather than a menu choice. Combinations carry considerations the individual treatments do not: the compounded blend used in sexual wellness pairs ingredients with opposing effects on blood pressure, hair loss treatment containing a 5-alpha-reductase inhibitor approximately halves PSA and must be accounted for in prostate monitoring for men on testosterone therapy, and combining peptides means combining preparations for which long-term human safety data does not exist. Never add something obtained elsewhere to a plan your ACT 2 Health clinician built without telling them. If you want to add a treatment, raise it at a follow-up so it can be assessed against everything you are already taking.

Question 21

What should I do if I get a side effect?

Accepted Answer

Tell your ACT 2 Health clinician when a side effect happens rather than waiting for the next scheduled follow-up, using the secure messaging in your patient account. Severe or rapidly worsening symptoms are a different matter: chest pain, difficulty breathing, fainting, an erection lasting more than four hours, sudden vision or hearing loss, signs of a blood clot or a severe allergic reaction need 911 or an emergency department, not a message. Do not stop, restart or change how you take a medication on your own — your clinician can adjust the plan, and knowing exactly what you took and when is part of how they do that. Some effects settle with time and some do not, which is why reporting early leaves the clinician more options.

Question 22

How do I report a side effect?

Accepted Answer

Report a side effect to your ACT 2 Health clinician through the secure messaging in your patient account, or through Contact if you cannot reach your account — and for anything severe or rapidly worsening, call 911 or go to an emergency department first and tell your clinician afterwards. You can also report a suspected problem with any medication directly to the FDA through its MedWatch program at fda.gov/medwatch, which is a separate channel from telling your clinician and is worth using as well for a serious or unexpected reaction. Reporting to the FDA does not require you to be certain the medication caused it. Both reports feed the record of what a preparation actually does in practice, which for compounded preparations is thinner than for approved products.

Question 23

What is the difference between a side effect and an adverse event?

Accepted Answer

A side effect is an unwanted effect of a medication that is known and expected — nausea on a GLP-1, an injection-site reaction, breast tenderness on estrogen therapy. An adverse event is any harmful or unintended medical occurrence in someone taking a medication, whether or not the medication turns out to have caused it; the term is deliberately broader, because causation is usually unclear at the moment something happens. The practical difference is what you do with it: both go to your ACT 2 Health clinician, but a serious adverse event — one that is life-threatening or causes hospitalization or lasting harm — is also worth reporting to the FDA through MedWatch. Do not try to work out whether the medication was responsible before you report it.

Question 24

What happens if a clinician decides a treatment is not safe for me?

Accepted Answer

If an ACT 2 Health clinician decides a treatment is not safe or not appropriate for you, they tell you so and explain the reasoning rather than simply declining. Eligibility is decided treatment by treatment, so being ruled out for one thing does not rule out the others, and in many cases the clinician can suggest an alternative or say what would need to change or be investigated first. Where the right answer is care ACT 2 Health does not provide, the clinician will say what kind of in-person or specialist care to seek. A clinician declining to prescribe is the service working as intended, not failing.

Question 25

Is telehealth appropriate for every health problem?

Accepted Answer

No. Telehealth is not appropriate for every problem, and ACT 2 Health is built for one kind of care: measurable, clinician-led treatment of metabolic, hormonal, sexual and healthspan concerns in adults in midlife. Anything that requires a physical examination, imaging, a procedure or hands-on assessment needs in-person care, and anything urgent needs emergency care. Some findings that surface during an ACT 2 Health evaluation are referred out rather than treated here — diagnosed adult growth hormone deficiency, for instance, is a specialist endocrine diagnosis requiring stimulation testing, and an elevated calprotectin result on stool testing warrants gastroenterology referral rather than dietary management. A clinician who tells you your problem belongs somewhere else is giving you the right answer.

We measure first. Then we act.