TPOXX Side Effects
Generic name: tecovirimat
Medically reviewed by Drugs.com. Last updated on Oct 9, 2024.
Note: This document provides detailed information about TPOXX.
Applies to tecovirimat: oral capsule Side Effects associated with tecovirimat. Some dosage forms listed on this page may not apply specifically to the brand name TPOXX.
Applies to tecovirimat: oral capsule.
Precautions
It is very important that your doctor check your progress at regular visits to make sure this medicine is working properly and to check for unwanted effects.
Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements.
Serious side effects of TPOXX
Along with its needed effects, tecovirimat (the active ingredient contained in TPOXX) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor immediately if any of the following side effects occur while taking tecovirimat:
Less common side effects
- headache, severe and throbbing
Other side effects of TPOXX
Some side effects of tecovirimat may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects.
Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
Less common side effects
- anxiety
- belching
- bloated, full feeling
- burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings
- change in taste
- chapped lips
- chest pain or discomfort
- chills
- difficulty in moving
- discouragement
- dry mouth
- excess air or gas in the stomach
- fast or pounding heartbeat
- feeling sad or empty
- fever
- general feeling of discomfort or illness
- heartburn
- indigestion
- irritability
- itching, skin rash
- lack of appetite
- loss of interest or pleasure
- loss of taste
- moderate diarrhea
- mouth or throat pain
- muscle pain or stiffness
- nausea
- pain, swelling, or redness in the joints
- redness or swelling of the face
- stomach discomfort, upset, or pain
- thirst
- trouble concentrating
- trouble sleeping
- unusual tiredness or weakness
- vomiting
For healthcare professionals
Applies to tecovirimat: intravenous solution, oral capsule.
General adverse events
The safety of this drug has not been studied in patients with smallpox disease. The reported adverse reactions are for studies in healthy subjects.[Ref]
Dermatologic
Frequency reported as less than 2%: Palpable purpura, rash, pruritic rash, facial redness, facial swelling and pruritus[Ref]
Gastrointestinal
- Common (1% to 10%): Nausea, abdominal pain, vomiting
Frequency reported as less than 2%: Dry mouth, dyspepsia, eructation, oral paresthesia[Ref]
Local
Intravenous administration:
- Very common (10% or more): Infusion site pain (73%), swelling (39%), erythema (23%), extravasation (19%)[Ref]
Musculoskeletal
Frequency reported as less than 2%: Arthralgia, osteoarthritis[Ref]
Psychiatric
Frequency reported as less than 2%: Depression, dysphoria, irritability, panic attack[Ref]
Respiratory
Frequency reported as less than 2%: Oropharyngeal pain[Ref]
Nervous system
- Very common (10% or more): Headache (up to 15%)
Frequency reported as less than 2%: Migraine, disturbance in attention, dysgeusia, paresthesia[Ref]
See also:
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References
1. "Product Information. Tpoxx (tecovirimat)." SIGA Technologies, Inc.
Frequently asked questions
More about TPOXX (tecovirimat)
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Further information
TPOXX side effects can vary depending on the individual. Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
Note: Medication side effects may be underreported. If you are experiencing side effects that are not listed, submit a report to the FDA by following this guide.
